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Finding the Fourth Proportional to 543,275.15, 749,753.73 and 301,561.76

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Solution

The fourth proportional to 543,275.15, 749,753.73 and 301,561.76 is: 416,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,275.15 : 749,753.73 = 301,561.76 : x
  2. Step 2: Convert to fraction form
    543,275.15/749,753.73 = 301,561.76/x
  3. Step 3: Cross multiply
    543,275.15x = 749,753.73 × 301,561.76
  4. Step 4: Simplify right side
    543,275.15x = 226,097,054,385.37
  5. Step 5: Solve for x
    x = 226,097,054,385.37/543,275.15
  6. Step 6: Final answer
    x = 416,174.11

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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.