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Finding the Fourth Proportional to 573,499.65, 791,428.37 and 328,563.73

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Solution

The fourth proportional to 573,499.65, 791,428.37 and 328,563.73 is: 453,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,499.65 : 791,428.37 = 328,563.73 : x
  2. Step 2: Convert to fraction form
    573,499.65/791,428.37 = 328,563.73/x
  3. Step 3: Cross multiply
    573,499.65x = 791,428.37 × 328,563.73
  4. Step 4: Simplify right side
    573,499.65x = 260,034,656,621.49
  5. Step 5: Solve for x
    x = 260,034,656,621.49/573,499.65
  6. Step 6: Final answer
    x = 453,417.29

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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.