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Finding the Fourth Proportional to 615,507.92, 924,885.54 and 331,408.52

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Solution

The fourth proportional to 615,507.92, 924,885.54 and 331,408.52 is: 497,987.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,507.92 : 924,885.54 = 331,408.52 : x
  2. Step 2: Convert to fraction form
    615,507.92/924,885.54 = 331,408.52/x
  3. Step 3: Cross multiply
    615,507.92x = 924,885.54 × 331,408.52
  4. Step 4: Simplify right side
    615,507.92x = 306,514,947,980.80
  5. Step 5: Solve for x
    x = 306,514,947,980.80/615,507.92
  6. Step 6: Final answer
    x = 497,987.01

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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.