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Finding the Fourth Proportional to 574,387.68, 861,892.56 and 553,444.32

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Solution

The fourth proportional to 574,387.68, 861,892.56 and 553,444.32 is: 830,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,387.68 : 861,892.56 = 553,444.32 : x
  2. Step 2: Convert to fraction form
    574,387.68/861,892.56 = 553,444.32/x
  3. Step 3: Cross multiply
    574,387.68x = 861,892.56 × 553,444.32
  4. Step 4: Simplify right side
    574,387.68x = 477,009,541,782.26
  5. Step 5: Solve for x
    x = 477,009,541,782.26/574,387.68
  6. Step 6: Final answer
    x = 830,466.18

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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.