Home / 811,097.38-1,119,321.65-448,545.64

Finding the Fourth Proportional to 811,097.38, 1,119,321.65 and 448,545.64

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Solution

The fourth proportional to 811,097.38, 1,119,321.65 and 448,545.64 is: 618,997.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,097.38 : 1,119,321.65 = 448,545.64 : x
  2. Step 2: Convert to fraction form
    811,097.38/1,119,321.65 = 448,545.64/x
  3. Step 3: Cross multiply
    811,097.38x = 1,119,321.65 × 448,545.64
  4. Step 4: Simplify right side
    811,097.38x = 502,066,845,865.11
  5. Step 5: Solve for x
    x = 502,066,845,865.11/811,097.38
  6. Step 6: Final answer
    x = 618,997.00

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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.