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Finding the Fourth Proportional to 615,487.68, 923,088.96 and 194,685.12

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Solution

The fourth proportional to 615,487.68, 923,088.96 and 194,685.12 is: 291,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,487.68 : 923,088.96 = 194,685.12 : x
  2. Step 2: Convert to fraction form
    615,487.68/923,088.96 = 194,685.12/x
  3. Step 3: Cross multiply
    615,487.68x = 923,088.96 × 194,685.12
  4. Step 4: Simplify right side
    615,487.68x = 179,711,684,948.28
  5. Step 5: Solve for x
    x = 179,711,684,948.28/615,487.68
  6. Step 6: Final answer
    x = 291,982.59

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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.