Home / 1,211,812.80-1,817,719.20-413,023.20

Finding the Fourth Proportional to 1,211,812.80, 1,817,719.20 and 413,023.20

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Solution

The fourth proportional to 1,211,812.80, 1,817,719.20 and 413,023.20 is: 619,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,812.80 : 1,817,719.20 = 413,023.20 : x
  2. Step 2: Convert to fraction form
    1,211,812.80/1,817,719.20 = 413,023.20/x
  3. Step 3: Cross multiply
    1,211,812.80x = 1,817,719.20 × 413,023.20
  4. Step 4: Simplify right side
    1,211,812.80x = 750,760,200,685.44
  5. Step 5: Solve for x
    x = 750,760,200,685.44/1,211,812.80
  6. Step 6: Final answer
    x = 619,534.80

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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.