Home / 858,774.30-1,287,059.85-479,694.30

Finding the Fourth Proportional to 858,774.30, 1,287,059.85 and 479,694.30

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Solution

The fourth proportional to 858,774.30, 1,287,059.85 and 479,694.30 is: 718,926.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,774.30 : 1,287,059.85 = 479,694.30 : x
  2. Step 2: Convert to fraction form
    858,774.30/1,287,059.85 = 479,694.30/x
  3. Step 3: Cross multiply
    858,774.30x = 1,287,059.85 × 479,694.30
  4. Step 4: Simplify right side
    858,774.30x = 617,395,273,803.86
  5. Step 5: Solve for x
    x = 617,395,273,803.86/858,774.30
  6. Step 6: Final answer
    x = 718,926.12

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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.