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Finding the Fourth Proportional to 543,705.12, 750,338.10 and 301,988.75

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Solution

The fourth proportional to 543,705.12, 750,338.10 and 301,988.75 is: 416,758.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,705.12 : 750,338.10 = 301,988.75 : x
  2. Step 2: Convert to fraction form
    543,705.12/750,338.10 = 301,988.75/x
  3. Step 3: Cross multiply
    543,705.12x = 750,338.10 × 301,988.75
  4. Step 4: Simplify right side
    543,705.12x = 226,593,661,144.68
  5. Step 5: Solve for x
    x = 226,593,661,144.68/543,705.12
  6. Step 6: Final answer
    x = 416,758.37

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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.