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Finding the Fourth Proportional to 474,539.78, 654,864.96 and 259,679.89

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Solution

The fourth proportional to 474,539.78, 654,864.96 and 259,679.89 is: 358,358.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,539.78 : 654,864.96 = 259,679.89 : x
  2. Step 2: Convert to fraction form
    474,539.78/654,864.96 = 259,679.89/x
  3. Step 3: Cross multiply
    474,539.78x = 654,864.96 × 259,679.89
  4. Step 4: Simplify right side
    474,539.78x = 170,055,260,777.65
  5. Step 5: Solve for x
    x = 170,055,260,777.65/474,539.78
  6. Step 6: Final answer
    x = 358,358.28

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1.5x scale

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.