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Finding the Fourth Proportional to 768,203.40, 1,152,305.10 and 635,233.80

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Solution

The fourth proportional to 768,203.40, 1,152,305.10 and 635,233.80 is: 952,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,203.40 : 1,152,305.10 = 635,233.80 : x
  2. Step 2: Convert to fraction form
    768,203.40/1,152,305.10 = 635,233.80/x
  3. Step 3: Cross multiply
    768,203.40x = 1,152,305.10 × 635,233.80
  4. Step 4: Simplify right side
    768,203.40x = 731,983,147,432.38
  5. Step 5: Solve for x
    x = 731,983,147,432.38/768,203.40
  6. Step 6: Final answer
    x = 952,850.70

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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.