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Finding the Fourth Proportional to 543,266.10, 749,701.08 and 301,550.76

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Solution

The fourth proportional to 543,266.10, 749,701.08 and 301,550.76 is: 416,136.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,266.10 : 749,701.08 = 301,550.76 : x
  2. Step 2: Convert to fraction form
    543,266.10/749,701.08 = 301,550.76/x
  3. Step 3: Cross multiply
    543,266.10x = 749,701.08 × 301,550.76
  4. Step 4: Simplify right side
    543,266.10x = 226,072,930,446.82
  5. Step 5: Solve for x
    x = 226,072,930,446.82/543,266.10
  6. Step 6: Final answer
    x = 416,136.64

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