Home / 808,114.20-1,212,171.30-358,834.20

Finding the Fourth Proportional to 808,114.20, 1,212,171.30 and 358,834.20

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Solution

The fourth proportional to 808,114.20, 1,212,171.30 and 358,834.20 is: 538,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,114.20 : 1,212,171.30 = 358,834.20 : x
  2. Step 2: Convert to fraction form
    808,114.20/1,212,171.30 = 358,834.20/x
  3. Step 3: Cross multiply
    808,114.20x = 1,212,171.30 × 358,834.20
  4. Step 4: Simplify right side
    808,114.20x = 434,968,518,698.46
  5. Step 5: Solve for x
    x = 434,968,518,698.46/808,114.20
  6. Step 6: Final answer
    x = 538,251.30

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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.