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Finding the Fourth Proportional to 484,765.61, 669,004.14 and 291,232.51

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Solution

The fourth proportional to 484,765.61, 669,004.14 and 291,232.51 is: 401,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,765.61 : 669,004.14 = 291,232.51 : x
  2. Step 2: Convert to fraction form
    484,765.61/669,004.14 = 291,232.51/x
  3. Step 3: Cross multiply
    484,765.61x = 669,004.14 × 291,232.51
  4. Step 4: Simplify right side
    484,765.61x = 194,835,754,892.59
  5. Step 5: Solve for x
    x = 194,835,754,892.59/484,765.61
  6. Step 6: Final answer
    x = 401,917.44

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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.