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Finding the Fourth Proportional to 661,060.17, 912,272.87 and 359,254.41

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Solution

The fourth proportional to 661,060.17, 912,272.87 and 359,254.41 is: 495,776.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,060.17 : 912,272.87 = 359,254.41 : x
  2. Step 2: Convert to fraction form
    661,060.17/912,272.87 = 359,254.41/x
  3. Step 3: Cross multiply
    661,060.17x = 912,272.87 × 359,254.41
  4. Step 4: Simplify right side
    661,060.17x = 327,738,049,874.59
  5. Step 5: Solve for x
    x = 327,738,049,874.59/661,060.17
  6. Step 6: Final answer
    x = 495,776.43

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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.