Home / 836,345.20-1,154,150.20-454,375.12

Finding the Fourth Proportional to 836,345.20, 1,154,150.20 and 454,375.12

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Solution

The fourth proportional to 836,345.20, 1,154,150.20 and 454,375.12 is: 627,034.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,345.20 : 1,154,150.20 = 454,375.12 : x
  2. Step 2: Convert to fraction form
    836,345.20/1,154,150.20 = 454,375.12/x
  3. Step 3: Cross multiply
    836,345.20x = 1,154,150.20 × 454,375.12
  4. Step 4: Simplify right side
    836,345.20x = 524,417,135,623.02
  5. Step 5: Solve for x
    x = 524,417,135,623.02/836,345.20
  6. Step 6: Final answer
    x = 627,034.31

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Double scale
Find fourth proportional to 836,346.20, 1,154,151.58 and 454,376.12
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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.