Home / 817,000.20-1,225,062.90-343,150.20

Finding the Fourth Proportional to 817,000.20, 1,225,062.90 and 343,150.20

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Solution

The fourth proportional to 817,000.20, 1,225,062.90 and 343,150.20 is: 514,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,000.20 : 1,225,062.90 = 343,150.20 : x
  2. Step 2: Convert to fraction form
    817,000.20/1,225,062.90 = 343,150.20/x
  3. Step 3: Cross multiply
    817,000.20x = 1,225,062.90 × 343,150.20
  4. Step 4: Simplify right side
    817,000.20x = 420,380,579,147.58
  5. Step 5: Solve for x
    x = 420,380,579,147.58/817,000.20
  6. Step 6: Final answer
    x = 514,541.59

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Double scale
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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.