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Finding the Fourth Proportional to 558,685.50, 838,193.52 and 322,197.90

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Solution

The fourth proportional to 558,685.50, 838,193.52 and 322,197.90 is: 483,392.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,685.50 : 838,193.52 = 322,197.90 : x
  2. Step 2: Convert to fraction form
    558,685.50/838,193.52 = 322,197.90/x
  3. Step 3: Cross multiply
    558,685.50x = 838,193.52 × 322,197.90
  4. Step 4: Simplify right side
    558,685.50x = 270,064,191,937.61
  5. Step 5: Solve for x
    x = 270,064,191,937.61/558,685.50
  6. Step 6: Final answer
    x = 483,392.16

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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.