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Finding the Fourth Proportional to 532,116.40, 798,401.40 and 279,590.80

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Solution

The fourth proportional to 532,116.40, 798,401.40 and 279,590.80 is: 419,505.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,116.40 : 798,401.40 = 279,590.80 : x
  2. Step 2: Convert to fraction form
    532,116.40/798,401.40 = 279,590.80/x
  3. Step 3: Cross multiply
    532,116.40x = 798,401.40 × 279,590.80
  4. Step 4: Simplify right side
    532,116.40x = 223,225,686,147.12
  5. Step 5: Solve for x
    x = 223,225,686,147.12/532,116.40
  6. Step 6: Final answer
    x = 419,505.37

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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.