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Finding the Fourth Proportional to 457,446.46, 631,277.58 and 253,500.74

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Solution

The fourth proportional to 457,446.46, 631,277.58 and 253,500.74 is: 349,831.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,446.46 : 631,277.58 = 253,500.74 : x
  2. Step 2: Convert to fraction form
    457,446.46/631,277.58 = 253,500.74/x
  3. Step 3: Cross multiply
    457,446.46x = 631,277.58 × 253,500.74
  4. Step 4: Simplify right side
    457,446.46x = 160,029,330,519.02
  5. Step 5: Solve for x
    x = 160,029,330,519.02/457,446.46
  6. Step 6: Final answer
    x = 349,831.83

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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.