Home / 756,078.20-1,134,117.30-437,213.60

Finding the Fourth Proportional to 756,078.20, 1,134,117.30 and 437,213.60

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Solution

The fourth proportional to 756,078.20, 1,134,117.30 and 437,213.60 is: 655,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,078.20 : 1,134,117.30 = 437,213.60 : x
  2. Step 2: Convert to fraction form
    756,078.20/1,134,117.30 = 437,213.60/x
  3. Step 3: Cross multiply
    756,078.20x = 1,134,117.30 × 437,213.60
  4. Step 4: Simplify right side
    756,078.20x = 495,851,507,555.28
  5. Step 5: Solve for x
    x = 495,851,507,555.28/756,078.20
  6. Step 6: Final answer
    x = 655,820.40

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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.