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Finding the Fourth Proportional to 457,862.22, 631,849.87 and 256,658.22

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Solution

The fourth proportional to 457,862.22, 631,849.87 and 256,658.22 is: 354,188.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,862.22 : 631,849.87 = 256,658.22 : x
  2. Step 2: Convert to fraction form
    457,862.22/631,849.87 = 256,658.22/x
  3. Step 3: Cross multiply
    457,862.22x = 631,849.87 × 256,658.22
  4. Step 4: Simplify right side
    457,862.22x = 162,169,462,941.43
  5. Step 5: Solve for x
    x = 162,169,462,941.43/457,862.22
  6. Step 6: Final answer
    x = 354,188.35

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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.