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Finding the Fourth Proportional to 338,534.40, 467,155.20 and 187,622.40

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Solution

The fourth proportional to 338,534.40, 467,155.20 and 187,622.40 is: 258,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,534.40 : 467,155.20 = 187,622.40 : x
  2. Step 2: Convert to fraction form
    338,534.40/467,155.20 = 187,622.40/x
  3. Step 3: Cross multiply
    338,534.40x = 467,155.20 × 187,622.40
  4. Step 4: Simplify right side
    338,534.40x = 87,648,779,796.48
  5. Step 5: Solve for x
    x = 87,648,779,796.48/338,534.40
  6. Step 6: Final answer
    x = 258,906.57

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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.