Home / 814,251.20-1,221,376.80-578,055.20

Finding the Fourth Proportional to 814,251.20, 1,221,376.80 and 578,055.20

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Solution

The fourth proportional to 814,251.20, 1,221,376.80 and 578,055.20 is: 867,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,251.20 : 1,221,376.80 = 578,055.20 : x
  2. Step 2: Convert to fraction form
    814,251.20/1,221,376.80 = 578,055.20/x
  3. Step 3: Cross multiply
    814,251.20x = 1,221,376.80 × 578,055.20
  4. Step 4: Simplify right side
    814,251.20x = 706,023,210,399.36
  5. Step 5: Solve for x
    x = 706,023,210,399.36/814,251.20
  6. Step 6: Final answer
    x = 867,082.80

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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.