Home / 401,545.19-554,122.37-229,452.23

Finding the Fourth Proportional to 401,545.19, 554,122.37 and 229,452.23

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Solution

The fourth proportional to 401,545.19, 554,122.37 and 229,452.23 is: 316,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,545.19 : 554,122.37 = 229,452.23 : x
  2. Step 2: Convert to fraction form
    401,545.19/554,122.37 = 229,452.23/x
  3. Step 3: Cross multiply
    401,545.19x = 554,122.37 × 229,452.23
  4. Step 4: Simplify right side
    401,545.19x = 127,144,613,489.39
  5. Step 5: Solve for x
    x = 127,144,613,489.39/401,545.19
  6. Step 6: Final answer
    x = 316,638.37

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Half scale
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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.