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Finding the Fourth Proportional to 461,060.08, 636,265.70 and 257,123.91

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Solution

The fourth proportional to 461,060.08, 636,265.70 and 257,123.91 is: 354,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,060.08 : 636,265.70 = 257,123.91 : x
  2. Step 2: Convert to fraction form
    461,060.08/636,265.70 = 257,123.91/x
  3. Step 3: Cross multiply
    461,060.08x = 636,265.70 × 257,123.91
  4. Step 4: Simplify right side
    461,060.08x = 163,599,124,582.89
  5. Step 5: Solve for x
    x = 163,599,124,582.89/461,060.08
  6. Step 6: Final answer
    x = 354,832.55

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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.