Home / 814,501.10-1,221,751.65-514,007.30

Finding the Fourth Proportional to 814,501.10, 1,221,751.65 and 514,007.30

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Solution

The fourth proportional to 814,501.10, 1,221,751.65 and 514,007.30 is: 771,010.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,501.10 : 1,221,751.65 = 514,007.30 : x
  2. Step 2: Convert to fraction form
    814,501.10/1,221,751.65 = 514,007.30/x
  3. Step 3: Cross multiply
    814,501.10x = 1,221,751.65 × 514,007.30
  4. Step 4: Simplify right side
    814,501.10x = 627,989,266,887.05
  5. Step 5: Solve for x
    x = 627,989,266,887.05/814,501.10
  6. Step 6: Final answer
    x = 771,010.95

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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.