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Finding the Fourth Proportional to 552,862.76, 763,186.02 and 371,679.78

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Solution

The fourth proportional to 552,862.76, 763,186.02 and 371,679.78 is: 513,076.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,862.76 : 763,186.02 = 371,679.78 : x
  2. Step 2: Convert to fraction form
    552,862.76/763,186.02 = 371,679.78/x
  3. Step 3: Cross multiply
    552,862.76x = 763,186.02 × 371,679.78
  4. Step 4: Simplify right side
    552,862.76x = 283,660,812,012.68
  5. Step 5: Solve for x
    x = 283,660,812,012.68/552,862.76
  6. Step 6: Final answer
    x = 513,076.36

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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.