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Finding the Fourth Proportional to 457,700.48, 631,646.64 and 253,738.42

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Solution

The fourth proportional to 457,700.48, 631,646.64 and 253,738.42 is: 350,170.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,700.48 : 631,646.64 = 253,738.42 : x
  2. Step 2: Convert to fraction form
    457,700.48/631,646.64 = 253,738.42/x
  3. Step 3: Cross multiply
    457,700.48x = 631,646.64 × 253,738.42
  4. Step 4: Simplify right side
    457,700.48x = 160,273,020,431.91
  5. Step 5: Solve for x
    x = 160,273,020,431.91/457,700.48
  6. Step 6: Final answer
    x = 350,170.09

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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.