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Finding the Fourth Proportional to 616,031.12, 850,038.91 and 344,064.31

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Solution

The fourth proportional to 616,031.12, 850,038.91 and 344,064.31 is: 474,761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,031.12 : 850,038.91 = 344,064.31 : x
  2. Step 2: Convert to fraction form
    616,031.12/850,038.91 = 344,064.31/x
  3. Step 3: Cross multiply
    616,031.12x = 850,038.91 × 344,064.31
  4. Step 4: Simplify right side
    616,031.12x = 292,468,048,057.04
  5. Step 5: Solve for x
    x = 292,468,048,057.04/616,031.12
  6. Step 6: Final answer
    x = 474,761.81

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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.