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Finding the Fourth Proportional to 415,239.82, 572,993.39 and 233,981.26

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Solution

The fourth proportional to 415,239.82, 572,993.39 and 233,981.26 is: 322,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,239.82 : 572,993.39 = 233,981.26 : x
  2. Step 2: Convert to fraction form
    415,239.82/572,993.39 = 233,981.26/x
  3. Step 3: Cross multiply
    415,239.82x = 572,993.39 × 233,981.26
  4. Step 4: Simplify right side
    415,239.82x = 134,069,714,516.34
  5. Step 5: Solve for x
    x = 134,069,714,516.34/415,239.82
  6. Step 6: Final answer
    x = 322,872.97

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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.