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Finding the Fourth Proportional to 543,245.49, 749,667.22 and 301,513.55

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Solution

The fourth proportional to 543,245.49, 749,667.22 and 301,513.55 is: 416,082.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,245.49 : 749,667.22 = 301,513.55 : x
  2. Step 2: Convert to fraction form
    543,245.49/749,667.22 = 301,513.55/x
  3. Step 3: Cross multiply
    543,245.49x = 749,667.22 × 301,513.55
  4. Step 4: Simplify right side
    543,245.49x = 226,034,820,318.71
  5. Step 5: Solve for x
    x = 226,034,820,318.71/543,245.49
  6. Step 6: Final answer
    x = 416,082.28

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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.