Home / 766,505.88-1,057,802.12-439,878.66

Finding the Fourth Proportional to 766,505.88, 1,057,802.12 and 439,878.66

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Solution

The fourth proportional to 766,505.88, 1,057,802.12 and 439,878.66 is: 607,046.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,505.88 : 1,057,802.12 = 439,878.66 : x
  2. Step 2: Convert to fraction form
    766,505.88/1,057,802.12 = 439,878.66/x
  3. Step 3: Cross multiply
    766,505.88x = 1,057,802.12 × 439,878.66
  4. Step 4: Simplify right side
    766,505.88x = 465,304,576,891.37
  5. Step 5: Solve for x
    x = 465,304,576,891.37/766,505.88
  6. Step 6: Final answer
    x = 607,046.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.