Home / 1,761,462.60-2,642,193.90-431,766.60

Finding the Fourth Proportional to 1,761,462.60, 2,642,193.90 and 431,766.60

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Solution

The fourth proportional to 1,761,462.60, 2,642,193.90 and 431,766.60 is: 647,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,462.60 : 2,642,193.90 = 431,766.60 : x
  2. Step 2: Convert to fraction form
    1,761,462.60/2,642,193.90 = 431,766.60/x
  3. Step 3: Cross multiply
    1,761,462.60x = 2,642,193.90 × 431,766.60
  4. Step 4: Simplify right side
    1,761,462.60x = 1,140,811,076,743.74
  5. Step 5: Solve for x
    x = 1,140,811,076,743.74/1,761,462.60
  6. Step 6: Final answer
    x = 647,649.90

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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.