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Finding the Fourth Proportional to 661,052.92, 912,262.86 and 359,247.16

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Solution

The fourth proportional to 661,052.92, 912,262.86 and 359,247.16 is: 495,766.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,052.92 : 912,262.86 = 359,247.16 : x
  2. Step 2: Convert to fraction form
    661,052.92/912,262.86 = 359,247.16/x
  3. Step 3: Cross multiply
    661,052.92x = 912,262.86 × 359,247.16
  4. Step 4: Simplify right side
    661,052.92x = 327,727,841,628.48
  5. Step 5: Solve for x
    x = 327,727,841,628.48/661,052.92
  6. Step 6: Final answer
    x = 495,766.42

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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.