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Finding the Fourth Proportional to 616,353.64, 850,551.74 and 344,423.78

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Solution

The fourth proportional to 616,353.64, 850,551.74 and 344,423.78 is: 475,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,353.64 : 850,551.74 = 344,423.78 : x
  2. Step 2: Convert to fraction form
    616,353.64/850,551.74 = 344,423.78/x
  3. Step 3: Cross multiply
    616,353.64x = 850,551.74 × 344,423.78
  4. Step 4: Simplify right side
    616,353.64x = 292,950,243,882.66
  5. Step 5: Solve for x
    x = 292,950,243,882.66/616,353.64
  6. Step 6: Final answer
    x = 475,295.72

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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.