Home / 858,230.20-1,287,345.30-544,079.80

Finding the Fourth Proportional to 858,230.20, 1,287,345.30 and 544,079.80

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Solution

The fourth proportional to 858,230.20, 1,287,345.30 and 544,079.80 is: 816,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,230.20 : 1,287,345.30 = 544,079.80 : x
  2. Step 2: Convert to fraction form
    858,230.20/1,287,345.30 = 544,079.80/x
  3. Step 3: Cross multiply
    858,230.20x = 1,287,345.30 × 544,079.80
  4. Step 4: Simplify right side
    858,230.20x = 700,418,573,354.94
  5. Step 5: Solve for x
    x = 700,418,573,354.94/858,230.20
  6. Step 6: Final answer
    x = 816,119.70

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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.