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Finding the Fourth Proportional to 474,402.20, 711,602.42 and 154,553.69

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Solution

The fourth proportional to 474,402.20, 711,602.42 and 154,553.69 is: 231,830.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,402.20 : 711,602.42 = 154,553.69 : x
  2. Step 2: Convert to fraction form
    474,402.20/711,602.42 = 154,553.69/x
  3. Step 3: Cross multiply
    474,402.20x = 711,602.42 × 154,553.69
  4. Step 4: Simplify right side
    474,402.20x = 109,980,779,823.93
  5. Step 5: Solve for x
    x = 109,980,779,823.93/474,402.20
  6. Step 6: Final answer
    x = 231,830.25

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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.