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Finding the Fourth Proportional to 532,810.65, 798,527.07 and 398,638.20

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Solution

The fourth proportional to 532,810.65, 798,527.07 and 398,638.20 is: 597,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,810.65 : 798,527.07 = 398,638.20 : x
  2. Step 2: Convert to fraction form
    532,810.65/798,527.07 = 398,638.20/x
  3. Step 3: Cross multiply
    532,810.65x = 798,527.07 × 398,638.20
  4. Step 4: Simplify right side
    532,810.65x = 318,323,393,836.07
  5. Step 5: Solve for x
    x = 318,323,393,836.07/532,810.65
  6. Step 6: Final answer
    x = 597,441.88

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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.