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Finding the Fourth Proportional to 573,100.56, 790,844.04 and 318,443.04

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Solution

The fourth proportional to 573,100.56, 790,844.04 and 318,443.04 is: 439,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,100.56 : 790,844.04 = 318,443.04 : x
  2. Step 2: Convert to fraction form
    573,100.56/790,844.04 = 318,443.04/x
  3. Step 3: Cross multiply
    573,100.56x = 790,844.04 × 318,443.04
  4. Step 4: Simplify right side
    573,100.56x = 251,838,780,263.48
  5. Step 5: Solve for x
    x = 251,838,780,263.48/573,100.56
  6. Step 6: Final answer
    x = 439,432.10

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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.