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Finding the Fourth Proportional to 543,207.17, 749,763.69 and 371,194.76

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Solution

The fourth proportional to 543,207.17, 749,763.69 and 371,194.76 is: 512,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,207.17 : 749,763.69 = 371,194.76 : x
  2. Step 2: Convert to fraction form
    543,207.17/749,763.69 = 371,194.76/x
  3. Step 3: Cross multiply
    543,207.17x = 749,763.69 × 371,194.76
  4. Step 4: Simplify right side
    543,207.17x = 278,308,349,231.27
  5. Step 5: Solve for x
    x = 278,308,349,231.27/543,207.17
  6. Step 6: Final answer
    x = 512,342.93

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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.