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Finding the Fourth Proportional to 474,663.12, 655,032.67 and 256,871.62

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Solution

The fourth proportional to 474,663.12, 655,032.67 and 256,871.62 is: 354,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,663.12 : 655,032.67 = 256,871.62 : x
  2. Step 2: Convert to fraction form
    474,663.12/655,032.67 = 256,871.62/x
  3. Step 3: Cross multiply
    474,663.12x = 655,032.67 × 256,871.62
  4. Step 4: Simplify right side
    474,663.12x = 168,259,303,095.83
  5. Step 5: Solve for x
    x = 168,259,303,095.83/474,663.12
  6. Step 6: Final answer
    x = 354,481.52

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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.