Home / 876,089.80-1,314,134.70-576,908.20

Finding the Fourth Proportional to 876,089.80, 1,314,134.70 and 576,908.20

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Solution

The fourth proportional to 876,089.80, 1,314,134.70 and 576,908.20 is: 865,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,089.80 : 1,314,134.70 = 576,908.20 : x
  2. Step 2: Convert to fraction form
    876,089.80/1,314,134.70 = 576,908.20/x
  3. Step 3: Cross multiply
    876,089.80x = 1,314,134.70 × 576,908.20
  4. Step 4: Simplify right side
    876,089.80x = 758,135,084,334.54
  5. Step 5: Solve for x
    x = 758,135,084,334.54/876,089.80
  6. Step 6: Final answer
    x = 865,362.30

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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.