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Finding the Fourth Proportional to 543,307.96, 814,961.94 and 243,625.06

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Solution

The fourth proportional to 543,307.96, 814,961.94 and 243,625.06 is: 365,437.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,307.96 : 814,961.94 = 243,625.06 : x
  2. Step 2: Convert to fraction form
    543,307.96/814,961.94 = 243,625.06/x
  3. Step 3: Cross multiply
    543,307.96x = 814,961.94 × 243,625.06
  4. Step 4: Simplify right side
    543,307.96x = 198,545,151,530.22
  5. Step 5: Solve for x
    x = 198,545,151,530.22/543,307.96
  6. Step 6: Final answer
    x = 365,437.59

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