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Finding the Fourth Proportional to 577,721.92, 866,407.92 and 156,943.12

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Solution

The fourth proportional to 577,721.92, 866,407.92 and 156,943.12 is: 235,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,721.92 : 866,407.92 = 156,943.12 : x
  2. Step 2: Convert to fraction form
    577,721.92/866,407.92 = 156,943.12/x
  3. Step 3: Cross multiply
    577,721.92x = 866,407.92 × 156,943.12
  4. Step 4: Simplify right side
    577,721.92x = 135,976,762,157.51
  5. Step 5: Solve for x
    x = 135,976,762,157.51/577,721.92
  6. Step 6: Final answer
    x = 235,367.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.