Home / 912,704.20-1,369,833.90-408,041.80

Finding the Fourth Proportional to 912,704.20, 1,369,833.90 and 408,041.80

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Solution

The fourth proportional to 912,704.20, 1,369,833.90 and 408,041.80 is: 612,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,704.20 : 1,369,833.90 = 408,041.80 : x
  2. Step 2: Convert to fraction form
    912,704.20/1,369,833.90 = 408,041.80/x
  3. Step 3: Cross multiply
    912,704.20x = 1,369,833.90 × 408,041.80
  4. Step 4: Simplify right side
    912,704.20x = 558,949,490,257.02
  5. Step 5: Solve for x
    x = 558,949,490,257.02/912,704.20
  6. Step 6: Final answer
    x = 612,410.34

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Double scale
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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.