Home / 513,519.53-769,637.77-354,480.89

Finding the Fourth Proportional to 513,519.53, 769,637.77 and 354,480.89

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Solution

The fourth proportional to 513,519.53, 769,637.77 and 354,480.89 is: 531,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,519.53 : 769,637.77 = 354,480.89 : x
  2. Step 2: Convert to fraction form
    513,519.53/769,637.77 = 354,480.89/x
  3. Step 3: Cross multiply
    513,519.53x = 769,637.77 × 354,480.89
  4. Step 4: Simplify right side
    513,519.53x = 272,821,876,952.82
  5. Step 5: Solve for x
    x = 272,821,876,952.82/513,519.53
  6. Step 6: Final answer
    x = 531,278.49

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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.