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Finding the Fourth Proportional to 457,260.98, 631,013.52 and 253,311.56

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Solution

The fourth proportional to 457,260.98, 631,013.52 and 253,311.56 is: 349,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,260.98 : 631,013.52 = 253,311.56 : x
  2. Step 2: Convert to fraction form
    457,260.98/631,013.52 = 253,311.56/x
  3. Step 3: Cross multiply
    457,260.98x = 631,013.52 × 253,311.56
  4. Step 4: Simplify right side
    457,260.98x = 159,843,019,132.29
  5. Step 5: Solve for x
    x = 159,843,019,132.29/457,260.98
  6. Step 6: Final answer
    x = 349,566.28

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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.