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Finding the Fourth Proportional to 581,138.60, 802,358.60 and 363,677.90

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Solution

The fourth proportional to 581,138.60, 802,358.60 and 363,677.90 is: 502,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,138.60 : 802,358.60 = 363,677.90 : x
  2. Step 2: Convert to fraction form
    581,138.60/802,358.60 = 363,677.90/x
  3. Step 3: Cross multiply
    581,138.60x = 802,358.60 × 363,677.90
  4. Step 4: Simplify right side
    581,138.60x = 291,800,084,864.76
  5. Step 5: Solve for x
    x = 291,800,084,864.76/581,138.60
  6. Step 6: Final answer
    x = 502,117.89

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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.