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Finding the Fourth Proportional to 437,572.20, 654,900.30 and 317,287.20

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Solution

The fourth proportional to 437,572.20, 654,900.30 and 317,287.20 is: 474,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,572.20 : 654,900.30 = 317,287.20 : x
  2. Step 2: Convert to fraction form
    437,572.20/654,900.30 = 317,287.20/x
  3. Step 3: Cross multiply
    437,572.20x = 654,900.30 × 317,287.20
  4. Step 4: Simplify right side
    437,572.20x = 207,791,482,466.16
  5. Step 5: Solve for x
    x = 207,791,482,466.16/437,572.20
  6. Step 6: Final answer
    x = 474,873.59

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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.