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Finding the Fourth Proportional to 474,866.72, 655,291.04 and 259,965.60

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Solution

The fourth proportional to 474,866.72, 655,291.04 and 259,965.60 is: 358,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,866.72 : 655,291.04 = 259,965.60 : x
  2. Step 2: Convert to fraction form
    474,866.72/655,291.04 = 259,965.60/x
  3. Step 3: Cross multiply
    474,866.72x = 655,291.04 × 259,965.60
  4. Step 4: Simplify right side
    474,866.72x = 170,353,128,388.22
  5. Step 5: Solve for x
    x = 170,353,128,388.22/474,866.72
  6. Step 6: Final answer
    x = 358,738.82

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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.