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Finding the Fourth Proportional to 518,127.48, 714,891.42 and 291,772.92

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Solution

The fourth proportional to 518,127.48, 714,891.42 and 291,772.92 is: 402,576.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,127.48 : 714,891.42 = 291,772.92 : x
  2. Step 2: Convert to fraction form
    518,127.48/714,891.42 = 291,772.92/x
  3. Step 3: Cross multiply
    518,127.48x = 714,891.42 × 291,772.92
  4. Step 4: Simplify right side
    518,127.48x = 208,585,957,096.35
  5. Step 5: Solve for x
    x = 208,585,957,096.35/518,127.48
  6. Step 6: Final answer
    x = 402,576.52

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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.