Home / 876,195.36-1,209,158.28-513,833.76

Finding the Fourth Proportional to 876,195.36, 1,209,158.28 and 513,833.76

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Solution

The fourth proportional to 876,195.36, 1,209,158.28 and 513,833.76 is: 709,095.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,195.36 : 1,209,158.28 = 513,833.76 : x
  2. Step 2: Convert to fraction form
    876,195.36/1,209,158.28 = 513,833.76/x
  3. Step 3: Cross multiply
    876,195.36x = 1,209,158.28 × 513,833.76
  4. Step 4: Simplify right side
    876,195.36x = 621,306,345,447.53
  5. Step 5: Solve for x
    x = 621,306,345,447.53/876,195.36
  6. Step 6: Final answer
    x = 709,095.68

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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.