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Finding the Fourth Proportional to 553,751.12, 764,177.01 and 299,102.51

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Solution

The fourth proportional to 553,751.12, 764,177.01 and 299,102.51 is: 412,761.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,751.12 : 764,177.01 = 299,102.51 : x
  2. Step 2: Convert to fraction form
    553,751.12/764,177.01 = 299,102.51/x
  3. Step 3: Cross multiply
    553,751.12x = 764,177.01 × 299,102.51
  4. Step 4: Simplify right side
    553,751.12x = 228,567,261,775.30
  5. Step 5: Solve for x
    x = 228,567,261,775.30/553,751.12
  6. Step 6: Final answer
    x = 412,761.71

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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.