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Finding the Fourth Proportional to 357,129.60, 532,539.12 and 353,924.16

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Solution

The fourth proportional to 357,129.60, 532,539.12 and 353,924.16 is: 527,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,129.60 : 532,539.12 = 353,924.16 : x
  2. Step 2: Convert to fraction form
    357,129.60/532,539.12 = 353,924.16/x
  3. Step 3: Cross multiply
    357,129.60x = 532,539.12 × 353,924.16
  4. Step 4: Simplify right side
    357,129.60x = 188,478,460,713.14
  5. Step 5: Solve for x
    x = 188,478,460,713.14/357,129.60
  6. Step 6: Final answer
    x = 527,759.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.