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Finding the Fourth Proportional to 648,314.10, 972,471.15 and 175,047.30

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Solution

The fourth proportional to 648,314.10, 972,471.15 and 175,047.30 is: 262,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,314.10 : 972,471.15 = 175,047.30 : x
  2. Step 2: Convert to fraction form
    648,314.10/972,471.15 = 175,047.30/x
  3. Step 3: Cross multiply
    648,314.10x = 972,471.15 × 175,047.30
  4. Step 4: Simplify right side
    648,314.10x = 170,228,449,135.40
  5. Step 5: Solve for x
    x = 170,228,449,135.40/648,314.10
  6. Step 6: Final answer
    x = 262,570.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.