Home / 809,300.60-1,213,950.90-557,358.20

Finding the Fourth Proportional to 809,300.60, 1,213,950.90 and 557,358.20

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Solution

The fourth proportional to 809,300.60, 1,213,950.90 and 557,358.20 is: 836,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,300.60 : 1,213,950.90 = 557,358.20 : x
  2. Step 2: Convert to fraction form
    809,300.60/1,213,950.90 = 557,358.20/x
  3. Step 3: Cross multiply
    809,300.60x = 1,213,950.90 × 557,358.20
  4. Step 4: Simplify right side
    809,300.60x = 676,605,488,512.38
  5. Step 5: Solve for x
    x = 676,605,488,512.38/809,300.60
  6. Step 6: Final answer
    x = 836,037.30

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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.