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Finding the Fourth Proportional to 492,456.52, 679,549.17 and 277,649.38

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Solution

The fourth proportional to 492,456.52, 679,549.17 and 277,649.38 is: 383,133.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,456.52 : 679,549.17 = 277,649.38 : x
  2. Step 2: Convert to fraction form
    492,456.52/679,549.17 = 277,649.38/x
  3. Step 3: Cross multiply
    492,456.52x = 679,549.17 × 277,649.38
  4. Step 4: Simplify right side
    492,456.52x = 188,676,405,730.02
  5. Step 5: Solve for x
    x = 188,676,405,730.02/492,456.52
  6. Step 6: Final answer
    x = 383,133.13

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1.5x scale

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.