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Finding the Fourth Proportional to 935,859.84, 1,403,304 and 403,087.68

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Solution

The fourth proportional to 935,859.84, 1,403,304 and 403,087.68 is: 604,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,859.84 : 1,403,304 = 403,087.68 : x
  2. Step 2: Convert to fraction form
    935,859.84/1,403,304 = 403,087.68/x
  3. Step 3: Cross multiply
    935,859.84x = 1,403,304 × 403,087.68
  4. Step 4: Simplify right side
    935,859.84x = 565,654,553,694.72
  5. Step 5: Solve for x
    x = 565,654,553,694.72/935,859.84
  6. Step 6: Final answer
    x = 604,422.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.