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Finding the Fourth Proportional to 316,957.28, 437,397.36 and 171,760.16

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Solution

The fourth proportional to 316,957.28, 437,397.36 and 171,760.16 is: 237,027.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,957.28 : 437,397.36 = 171,760.16 : x
  2. Step 2: Convert to fraction form
    316,957.28/437,397.36 = 171,760.16/x
  3. Step 3: Cross multiply
    316,957.28x = 437,397.36 × 171,760.16
  4. Step 4: Simplify right side
    316,957.28x = 75,127,440,537.18
  5. Step 5: Solve for x
    x = 75,127,440,537.18/316,957.28
  6. Step 6: Final answer
    x = 237,027.02

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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.