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Finding the Fourth Proportional to 865,767.11, 1,298,650.67 and 234,680.93

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Solution

The fourth proportional to 865,767.11, 1,298,650.67 and 234,680.93 is: 352,021.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,767.11 : 1,298,650.67 = 234,680.93 : x
  2. Step 2: Convert to fraction form
    865,767.11/1,298,650.67 = 234,680.93/x
  3. Step 3: Cross multiply
    865,767.11x = 1,298,650.67 × 234,680.93
  4. Step 4: Simplify right side
    865,767.11x = 304,768,539,314.07
  5. Step 5: Solve for x
    x = 304,768,539,314.07/865,767.11
  6. Step 6: Final answer
    x = 352,021.39

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