Home / 896,103.80-1,344,155.70-398,439.80

Finding the Fourth Proportional to 896,103.80, 1,344,155.70 and 398,439.80

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Solution

The fourth proportional to 896,103.80, 1,344,155.70 and 398,439.80 is: 597,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,103.80 : 1,344,155.70 = 398,439.80 : x
  2. Step 2: Convert to fraction form
    896,103.80/1,344,155.70 = 398,439.80/x
  3. Step 3: Cross multiply
    896,103.80x = 1,344,155.70 × 398,439.80
  4. Step 4: Simplify right side
    896,103.80x = 535,565,128,276.86
  5. Step 5: Solve for x
    x = 535,565,128,276.86/896,103.80
  6. Step 6: Final answer
    x = 597,659.70

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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.