Home / 814,252.20-1,221,378.30-578,056.20

Finding the Fourth Proportional to 814,252.20, 1,221,378.30 and 578,056.20

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Solution

The fourth proportional to 814,252.20, 1,221,378.30 and 578,056.20 is: 867,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,252.20 : 1,221,378.30 = 578,056.20 : x
  2. Step 2: Convert to fraction form
    814,252.20/1,221,378.30 = 578,056.20/x
  3. Step 3: Cross multiply
    814,252.20x = 1,221,378.30 × 578,056.20
  4. Step 4: Simplify right side
    814,252.20x = 706,025,298,860.46
  5. Step 5: Solve for x
    x = 706,025,298,860.46/814,252.20
  6. Step 6: Final answer
    x = 867,084.30

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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.