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Finding the Fourth Proportional to 634,292.46, 874,476.83 and 503,902.78

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Solution

The fourth proportional to 634,292.46, 874,476.83 and 503,902.78 is: 694,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,292.46 : 874,476.83 = 503,902.78 : x
  2. Step 2: Convert to fraction form
    634,292.46/874,476.83 = 503,902.78/x
  3. Step 3: Cross multiply
    634,292.46x = 874,476.83 × 503,902.78
  4. Step 4: Simplify right side
    634,292.46x = 440,651,304,756.15
  5. Step 5: Solve for x
    x = 440,651,304,756.15/634,292.46
  6. Step 6: Final answer
    x = 694,713.14

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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.