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Finding the Fourth Proportional to 675,376.73, 932,042.91 and 385,031.23

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Solution

The fourth proportional to 675,376.73, 932,042.91 and 385,031.23 is: 531,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,376.73 : 932,042.91 = 385,031.23 : x
  2. Step 2: Convert to fraction form
    675,376.73/932,042.91 = 385,031.23/x
  3. Step 3: Cross multiply
    675,376.73x = 932,042.91 × 385,031.23
  4. Step 4: Simplify right side
    675,376.73x = 358,865,628,050.08
  5. Step 5: Solve for x
    x = 358,865,628,050.08/675,376.73
  6. Step 6: Final answer
    x = 531,356.22

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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.