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Finding the Fourth Proportional to 572,470.60, 862,820.74 and 493,462.18

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Solution

The fourth proportional to 572,470.60, 862,820.74 and 493,462.18 is: 743,740.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,470.60 : 862,820.74 = 493,462.18 : x
  2. Step 2: Convert to fraction form
    572,470.60/862,820.74 = 493,462.18/x
  3. Step 3: Cross multiply
    572,470.60x = 862,820.74 × 493,462.18
  4. Step 4: Simplify right side
    572,470.60x = 425,769,400,842.30
  5. Step 5: Solve for x
    x = 425,769,400,842.30/572,470.60
  6. Step 6: Final answer
    x = 743,740.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.