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Finding the Fourth Proportional to 663,809,061.70, 927,518,701.10 and 663,809,061.70

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Solution

The fourth proportional to 663,809,061.70, 927,518,701.10 and 663,809,061.70 is: 927,518,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,809,061.70 : 927,518,701.10 = 663,809,061.70 : x
  2. Step 2: Convert to fraction form
    663,809,061.70/927,518,701.10 = 663,809,061.70/x
  3. Step 3: Cross multiply
    663,809,061.70x = 927,518,701.10 × 663,809,061.70
  4. Step 4: Simplify right side
    663,809,061.70x = 615,695,318,686,393,856
  5. Step 5: Solve for x
    x = 615,695,318,686,393,856/663,809,061.70
  6. Step 6: Final answer
    x = 927,518,701.10

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Double scale
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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.