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Finding the Fourth Proportional to 662,040.75, 913,630.82 and 360,234.75

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Solution

The fourth proportional to 662,040.75, 913,630.82 and 360,234.75 is: 497,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,040.75 : 913,630.82 = 360,234.75 : x
  2. Step 2: Convert to fraction form
    662,040.75/913,630.82 = 360,234.75/x
  3. Step 3: Cross multiply
    662,040.75x = 913,630.82 × 360,234.75
  4. Step 4: Simplify right side
    662,040.75x = 329,121,568,233.82
  5. Step 5: Solve for x
    x = 329,121,568,233.82/662,040.75
  6. Step 6: Final answer
    x = 497,131.89

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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.