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Finding the Fourth Proportional to 543,812.76, 750,252.24 and 400,912.56

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Solution

The fourth proportional to 543,812.76, 750,252.24 and 400,912.56 is: 553,104.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,812.76 : 750,252.24 = 400,912.56 : x
  2. Step 2: Convert to fraction form
    543,812.76/750,252.24 = 400,912.56/x
  3. Step 3: Cross multiply
    543,812.76x = 750,252.24 × 400,912.56
  4. Step 4: Simplify right side
    543,812.76x = 300,785,546,184.13
  5. Step 5: Solve for x
    x = 300,785,546,184.13/543,812.76
  6. Step 6: Final answer
    x = 553,104.98

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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.