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Finding the Fourth Proportional to 663,810,315.70, 927,520,456.70 and 663,810,315.70

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Solution

The fourth proportional to 663,810,315.70, 927,520,456.70 and 663,810,315.70 is: 927,520,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,810,315.70 : 927,520,456.70 = 663,810,315.70 : x
  2. Step 2: Convert to fraction form
    663,810,315.70/927,520,456.70 = 663,810,315.70/x
  3. Step 3: Cross multiply
    663,810,315.70x = 927,520,456.70 × 663,810,315.70
  4. Step 4: Simplify right side
    663,810,315.70x = 615,697,647,180,235,264
  5. Step 5: Solve for x
    x = 615,697,647,180,235,264/663,810,315.70
  6. Step 6: Final answer
    x = 927,520,456.70

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Half scale
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Double scale
Find fourth proportional to 663,810,316.70, 927,520,458.10 and 663,810,316.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.