Home / 574,518,343.20-861,777,514.80-399,166,432.80

Finding the Fourth Proportional to 574,518,343.20, 861,777,514.80 and 399,166,432.80

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Solution

The fourth proportional to 574,518,343.20, 861,777,514.80 and 399,166,432.80 is: 598,749,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,518,343.20 : 861,777,514.80 = 399,166,432.80 : x
  2. Step 2: Convert to fraction form
    574,518,343.20/861,777,514.80 = 399,166,432.80/x
  3. Step 3: Cross multiply
    574,518,343.20x = 861,777,514.80 × 399,166,432.80
  4. Step 4: Simplify right side
    574,518,343.20x = 343,992,656,449,965,184
  5. Step 5: Solve for x
    x = 343,992,656,449,965,184/574,518,343.20
  6. Step 6: Final answer
    x = 598,749,649.20

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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.