Home / 811,097.20-1,119,321.39-448,545.45

Finding the Fourth Proportional to 811,097.20, 1,119,321.39 and 448,545.45

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Solution

The fourth proportional to 811,097.20, 1,119,321.39 and 448,545.45 is: 618,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,097.20 : 1,119,321.39 = 448,545.45 : x
  2. Step 2: Convert to fraction form
    811,097.20/1,119,321.39 = 448,545.45/x
  3. Step 3: Cross multiply
    811,097.20x = 1,119,321.39 × 448,545.45
  4. Step 4: Simplify right side
    811,097.20x = 502,066,516,572.18
  5. Step 5: Solve for x
    x = 502,066,516,572.18/811,097.20
  6. Step 6: Final answer
    x = 618,996.73

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Double scale
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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.