Home / 638,053.38-880,481.88-351,527.22

Finding the Fourth Proportional to 638,053.38, 880,481.88 and 351,527.22

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Solution

The fourth proportional to 638,053.38, 880,481.88 and 351,527.22 is: 485,090.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,053.38 : 880,481.88 = 351,527.22 : x
  2. Step 2: Convert to fraction form
    638,053.38/880,481.88 = 351,527.22/x
  3. Step 3: Cross multiply
    638,053.38x = 880,481.88 × 351,527.22
  4. Step 4: Simplify right side
    638,053.38x = 309,513,347,536.77
  5. Step 5: Solve for x
    x = 309,513,347,536.77/638,053.38
  6. Step 6: Final answer
    x = 485,090.05

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.