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Finding the Fourth Proportional to 586,387.30, 879,664.80 and 187,032.61

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Solution

The fourth proportional to 586,387.30, 879,664.80 and 187,032.61 is: 280,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,387.30 : 879,664.80 = 187,032.61 : x
  2. Step 2: Convert to fraction form
    586,387.30/879,664.80 = 187,032.61/x
  3. Step 3: Cross multiply
    586,387.30x = 879,664.80 × 187,032.61
  4. Step 4: Simplify right side
    586,387.30x = 164,526,003,469.13
  5. Step 5: Solve for x
    x = 164,526,003,469.13/586,387.30
  6. Step 6: Final answer
    x = 280,575.66

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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.