Home / 853,891.20-1,279,454.40-537,782.40

Finding the Fourth Proportional to 853,891.20, 1,279,454.40 and 537,782.40

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Solution

The fourth proportional to 853,891.20, 1,279,454.40 and 537,782.40 is: 805,802.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,891.20 : 1,279,454.40 = 537,782.40 : x
  2. Step 2: Convert to fraction form
    853,891.20/1,279,454.40 = 537,782.40/x
  3. Step 3: Cross multiply
    853,891.20x = 1,279,454.40 × 537,782.40
  4. Step 4: Simplify right side
    853,891.20x = 688,068,057,922.56
  5. Step 5: Solve for x
    x = 688,068,057,922.56/853,891.20
  6. Step 6: Final answer
    x = 805,802.96

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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.