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Finding the Fourth Proportional to 474,801.21, 655,201.10 and 259,900.52

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Solution

The fourth proportional to 474,801.21, 655,201.10 and 259,900.52 is: 358,649.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,801.21 : 655,201.10 = 259,900.52 : x
  2. Step 2: Convert to fraction form
    474,801.21/655,201.10 = 259,900.52/x
  3. Step 3: Cross multiply
    474,801.21x = 655,201.10 × 259,900.52
  4. Step 4: Simplify right side
    474,801.21x = 170,287,103,968.32
  5. Step 5: Solve for x
    x = 170,287,103,968.32/474,801.21
  6. Step 6: Final answer
    x = 358,649.26

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Double scale
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Similar ratio
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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.