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Finding the Fourth Proportional to 474,675.79, 655,058.75 and 259,811.25

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Solution

The fourth proportional to 474,675.79, 655,058.75 and 259,811.25 is: 358,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,675.79 : 655,058.75 = 259,811.25 : x
  2. Step 2: Convert to fraction form
    474,675.79/655,058.75 = 259,811.25/x
  3. Step 3: Cross multiply
    474,675.79x = 655,058.75 × 259,811.25
  4. Step 4: Simplify right side
    474,675.79x = 170,191,632,660.94
  5. Step 5: Solve for x
    x = 170,191,632,660.94/474,675.79
  6. Step 6: Final answer
    x = 358,542.90

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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.