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Finding the Fourth Proportional to 532,184.60, 798,536.10 and 405,781.40

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Solution

The fourth proportional to 532,184.60, 798,536.10 and 405,781.40 is: 608,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,184.60 : 798,536.10 = 405,781.40 : x
  2. Step 2: Convert to fraction form
    532,184.60/798,536.10 = 405,781.40/x
  3. Step 3: Cross multiply
    532,184.60x = 798,536.10 × 405,781.40
  4. Step 4: Simplify right side
    532,184.60x = 324,031,096,608.54
  5. Step 5: Solve for x
    x = 324,031,096,608.54/532,184.60
  6. Step 6: Final answer
    x = 608,869.74

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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.