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Finding the Fourth Proportional to 484,765.11, 669,003.45 and 291,232.01

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Solution

The fourth proportional to 484,765.11, 669,003.45 and 291,232.01 is: 401,916.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,765.11 : 669,003.45 = 291,232.01 : x
  2. Step 2: Convert to fraction form
    484,765.11/669,003.45 = 291,232.01/x
  3. Step 3: Cross multiply
    484,765.11x = 669,003.45 × 291,232.01
  4. Step 4: Simplify right side
    484,765.11x = 194,835,219,440.43
  5. Step 5: Solve for x
    x = 194,835,219,440.43/484,765.11
  6. Step 6: Final answer
    x = 401,916.75

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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.