Home / 914,510.20-1,372,542.90-409,847.80

Finding the Fourth Proportional to 914,510.20, 1,372,542.90 and 409,847.80

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Solution

The fourth proportional to 914,510.20, 1,372,542.90 and 409,847.80 is: 615,120.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,510.20 : 1,372,542.90 = 409,847.80 : x
  2. Step 2: Convert to fraction form
    914,510.20/1,372,542.90 = 409,847.80/x
  3. Step 3: Cross multiply
    914,510.20x = 1,372,542.90 × 409,847.80
  4. Step 4: Simplify right side
    914,510.20x = 562,533,687,970.62
  5. Step 5: Solve for x
    x = 562,533,687,970.62/914,510.20
  6. Step 6: Final answer
    x = 615,120.19

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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.