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Finding the Fourth Proportional to 675,915.13, 932,764.71 and 374,109.13

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Solution

The fourth proportional to 675,915.13, 932,764.71 and 374,109.13 is: 516,271.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,915.13 : 932,764.71 = 374,109.13 : x
  2. Step 2: Convert to fraction form
    675,915.13/932,764.71 = 374,109.13/x
  3. Step 3: Cross multiply
    675,915.13x = 932,764.71 × 374,109.13
  4. Step 4: Simplify right side
    675,915.13x = 348,955,794,152.80
  5. Step 5: Solve for x
    x = 348,955,794,152.80/675,915.13
  6. Step 6: Final answer
    x = 516,271.61

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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.