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Finding the Fourth Proportional to 573,620.68, 791,564.04 and 318,966.40

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Solution

The fourth proportional to 573,620.68, 791,564.04 and 318,966.40 is: 440,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,620.68 : 791,564.04 = 318,966.40 : x
  2. Step 2: Convert to fraction form
    573,620.68/791,564.04 = 318,966.40/x
  3. Step 3: Cross multiply
    573,620.68x = 791,564.04 × 318,966.40
  4. Step 4: Simplify right side
    573,620.68x = 252,482,332,208.26
  5. Step 5: Solve for x
    x = 252,482,332,208.26/573,620.68
  6. Step 6: Final answer
    x = 440,155.56

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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.