Home / 876,109.80-1,314,164.70-576,928.20

Finding the Fourth Proportional to 876,109.80, 1,314,164.70 and 576,928.20

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Solution

The fourth proportional to 876,109.80, 1,314,164.70 and 576,928.20 is: 865,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,109.80 : 1,314,164.70 = 576,928.20 : x
  2. Step 2: Convert to fraction form
    876,109.80/1,314,164.70 = 576,928.20/x
  3. Step 3: Cross multiply
    876,109.80x = 1,314,164.70 × 576,928.20
  4. Step 4: Simplify right side
    876,109.80x = 758,178,674,874.54
  5. Step 5: Solve for x
    x = 758,178,674,874.54/876,109.80
  6. Step 6: Final answer
    x = 865,392.30

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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.