Home / 514,789.48-772,184.22-140,815.72

Finding the Fourth Proportional to 514,789.48, 772,184.22 and 140,815.72

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Solution

The fourth proportional to 514,789.48, 772,184.22 and 140,815.72 is: 211,223.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,789.48 : 772,184.22 = 140,815.72 : x
  2. Step 2: Convert to fraction form
    514,789.48/772,184.22 = 140,815.72/x
  3. Step 3: Cross multiply
    514,789.48x = 772,184.22 × 140,815.72
  4. Step 4: Simplify right side
    514,789.48x = 108,735,676,911.94
  5. Step 5: Solve for x
    x = 108,735,676,911.94/514,789.48
  6. Step 6: Final answer
    x = 211,223.58

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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.