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Finding the Fourth Proportional to 491,569.50, 736,603.14 and 331,051.90

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Solution

The fourth proportional to 491,569.50, 736,603.14 and 331,051.90 is: 496,072.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,569.50 : 736,603.14 = 331,051.90 : x
  2. Step 2: Convert to fraction form
    491,569.50/736,603.14 = 331,051.90/x
  3. Step 3: Cross multiply
    491,569.50x = 736,603.14 × 331,051.90
  4. Step 4: Simplify right side
    491,569.50x = 243,853,869,042.97
  5. Step 5: Solve for x
    x = 243,853,869,042.97/491,569.50
  6. Step 6: Final answer
    x = 496,072.01

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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.