Home / 866,287.16-1,299,519.85-326,997.69

Finding the Fourth Proportional to 866,287.16, 1,299,519.85 and 326,997.69

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Solution

The fourth proportional to 866,287.16, 1,299,519.85 and 326,997.69 is: 490,530.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,287.16 : 1,299,519.85 = 326,997.69 : x
  2. Step 2: Convert to fraction form
    866,287.16/1,299,519.85 = 326,997.69/x
  3. Step 3: Cross multiply
    866,287.16x = 1,299,519.85 × 326,997.69
  4. Step 4: Simplify right side
    866,287.16x = 424,939,989,059.15
  5. Step 5: Solve for x
    x = 424,939,989,059.15/866,287.16
  6. Step 6: Final answer
    x = 490,530.17

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Double scale
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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.