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Finding the Fourth Proportional to 547,044.39, 754,326.14 and 355,702.95

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Solution

The fourth proportional to 547,044.39, 754,326.14 and 355,702.95 is: 490,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,044.39 : 754,326.14 = 355,702.95 : x
  2. Step 2: Convert to fraction form
    547,044.39/754,326.14 = 355,702.95/x
  3. Step 3: Cross multiply
    547,044.39x = 754,326.14 × 355,702.95
  4. Step 4: Simplify right side
    547,044.39x = 268,316,031,481.60
  5. Step 5: Solve for x
    x = 268,316,031,481.60/547,044.39
  6. Step 6: Final answer
    x = 490,483.11

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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.