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Finding the Fourth Proportional to 756,658.60, 1,134,987.90 and 635,007.40

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Solution

The fourth proportional to 756,658.60, 1,134,987.90 and 635,007.40 is: 952,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,658.60 : 1,134,987.90 = 635,007.40 : x
  2. Step 2: Convert to fraction form
    756,658.60/1,134,987.90 = 635,007.40/x
  3. Step 3: Cross multiply
    756,658.60x = 1,134,987.90 × 635,007.40
  4. Step 4: Simplify right side
    756,658.60x = 720,725,715,410.46
  5. Step 5: Solve for x
    x = 720,725,715,410.46/756,658.60
  6. Step 6: Final answer
    x = 952,511.10

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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.