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Finding the Fourth Proportional to 615,093.90, 847,569.78 and 453,693.30

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Solution

The fourth proportional to 615,093.90, 847,569.78 and 453,693.30 is: 625,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,093.90 : 847,569.78 = 453,693.30 : x
  2. Step 2: Convert to fraction form
    615,093.90/847,569.78 = 453,693.30/x
  3. Step 3: Cross multiply
    615,093.90x = 847,569.78 × 453,693.30
  4. Step 4: Simplify right side
    615,093.90x = 384,536,730,468.47
  5. Step 5: Solve for x
    x = 384,536,730,468.47/615,093.90
  6. Step 6: Final answer
    x = 625,167.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.