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Finding the Fourth Proportional to 543,806.38, 750,474.10 and 372,084.51

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Solution

The fourth proportional to 543,806.38, 750,474.10 and 372,084.51 is: 513,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,806.38 : 750,474.10 = 372,084.51 : x
  2. Step 2: Convert to fraction form
    543,806.38/750,474.10 = 372,084.51/x
  3. Step 3: Cross multiply
    543,806.38x = 750,474.10 × 372,084.51
  4. Step 4: Simplify right side
    543,806.38x = 279,239,791,045.57
  5. Step 5: Solve for x
    x = 279,239,791,045.57/543,806.38
  6. Step 6: Final answer
    x = 513,491.20

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1.5x scale

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.