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Finding the Fourth Proportional to 454,304.70, 626,931.90 and 263,335.86

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Solution

The fourth proportional to 454,304.70, 626,931.90 and 263,335.86 is: 363,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,304.70 : 626,931.90 = 263,335.86 : x
  2. Step 2: Convert to fraction form
    454,304.70/626,931.90 = 263,335.86/x
  3. Step 3: Cross multiply
    454,304.70x = 626,931.90 × 263,335.86
  4. Step 4: Simplify right side
    454,304.70x = 165,093,651,047.93
  5. Step 5: Solve for x
    x = 165,093,651,047.93/454,304.70
  6. Step 6: Final answer
    x = 363,398.51

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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.