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Finding the Fourth Proportional to 532,086.40, 798,356.40 and 279,560.80

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Solution

The fourth proportional to 532,086.40, 798,356.40 and 279,560.80 is: 419,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,086.40 : 798,356.40 = 279,560.80 : x
  2. Step 2: Convert to fraction form
    532,086.40/798,356.40 = 279,560.80/x
  3. Step 3: Cross multiply
    532,086.40x = 798,356.40 × 279,560.80
  4. Step 4: Simplify right side
    532,086.40x = 223,189,153,869.12
  5. Step 5: Solve for x
    x = 223,189,153,869.12/532,086.40
  6. Step 6: Final answer
    x = 419,460.36

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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.