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Finding the Fourth Proportional to 573,047.72, 790,806.04 and 318,398.92

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Solution

The fourth proportional to 573,047.72, 790,806.04 and 318,398.92 is: 439,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,047.72 : 790,806.04 = 318,398.92 : x
  2. Step 2: Convert to fraction form
    573,047.72/790,806.04 = 318,398.92/x
  3. Step 3: Cross multiply
    573,047.72x = 790,806.04 × 318,398.92
  4. Step 4: Simplify right side
    573,047.72x = 251,791,789,065.48
  5. Step 5: Solve for x
    x = 251,791,789,065.48/573,047.72
  6. Step 6: Final answer
    x = 439,390.61

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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.