Home / 761,453.20-1,142,179.80-525,062.80

Finding the Fourth Proportional to 761,453.20, 1,142,179.80 and 525,062.80

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Solution

The fourth proportional to 761,453.20, 1,142,179.80 and 525,062.80 is: 787,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,453.20 : 1,142,179.80 = 525,062.80 : x
  2. Step 2: Convert to fraction form
    761,453.20/1,142,179.80 = 525,062.80/x
  3. Step 3: Cross multiply
    761,453.20x = 1,142,179.80 × 525,062.80
  4. Step 4: Simplify right side
    761,453.20x = 599,716,123,891.44
  5. Step 5: Solve for x
    x = 599,716,123,891.44/761,453.20
  6. Step 6: Final answer
    x = 787,594.20

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Double scale
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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.