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Finding the Fourth Proportional to 474,005.39, 654,127.31 and 259,145.39

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Solution

The fourth proportional to 474,005.39, 654,127.31 and 259,145.39 is: 357,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,005.39 : 654,127.31 = 259,145.39 : x
  2. Step 2: Convert to fraction form
    474,005.39/654,127.31 = 259,145.39/x
  3. Step 3: Cross multiply
    474,005.39x = 654,127.31 × 259,145.39
  4. Step 4: Simplify right side
    474,005.39x = 169,514,079,142.78
  5. Step 5: Solve for x
    x = 169,514,079,142.78/474,005.39
  6. Step 6: Final answer
    x = 357,620.58

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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.