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Finding the Fourth Proportional to 532,816.40, 799,030.20 and 266,488.40

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Solution

The fourth proportional to 532,816.40, 799,030.20 and 266,488.40 is: 399,635.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,816.40 : 799,030.20 = 266,488.40 : x
  2. Step 2: Convert to fraction form
    532,816.40/799,030.20 = 266,488.40/x
  3. Step 3: Cross multiply
    532,816.40x = 799,030.20 × 266,488.40
  4. Step 4: Simplify right side
    532,816.40x = 212,932,279,549.68
  5. Step 5: Solve for x
    x = 212,932,279,549.68/532,816.40
  6. Step 6: Final answer
    x = 399,635.37

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Similar ratio
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1.5x scale

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.