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Finding the Fourth Proportional to 463,205.60, 639,235.20 and 259,254.80

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Solution

The fourth proportional to 463,205.60, 639,235.20 and 259,254.80 is: 357,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,205.60 : 639,235.20 = 259,254.80 : x
  2. Step 2: Convert to fraction form
    463,205.60/639,235.20 = 259,254.80/x
  3. Step 3: Cross multiply
    463,205.60x = 639,235.20 × 259,254.80
  4. Step 4: Simplify right side
    463,205.60x = 165,724,793,928.96
  5. Step 5: Solve for x
    x = 165,724,793,928.96/463,205.60
  6. Step 6: Final answer
    x = 357,778.04

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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.