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Finding the Fourth Proportional to 558,598.98, 769,398.12 and 429,290.04

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Solution

The fourth proportional to 558,598.98, 769,398.12 and 429,290.04 is: 591,291.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,598.98 : 769,398.12 = 429,290.04 : x
  2. Step 2: Convert to fraction form
    558,598.98/769,398.12 = 429,290.04/x
  3. Step 3: Cross multiply
    558,598.98x = 769,398.12 × 429,290.04
  4. Step 4: Simplify right side
    558,598.98x = 330,294,949,710.73
  5. Step 5: Solve for x
    x = 330,294,949,710.73/558,598.98
  6. Step 6: Final answer
    x = 591,291.72

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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.