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Finding the Fourth Proportional to 247,285.20, 346,986.60 and 247,285.20

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Solution

The fourth proportional to 247,285.20, 346,986.60 and 247,285.20 is: 346,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,285.20 : 346,986.60 = 247,285.20 : x
  2. Step 2: Convert to fraction form
    247,285.20/346,986.60 = 247,285.20/x
  3. Step 3: Cross multiply
    247,285.20x = 346,986.60 × 247,285.20
  4. Step 4: Simplify right side
    247,285.20x = 85,804,650,778.32
  5. Step 5: Solve for x
    x = 85,804,650,778.32/247,285.20
  6. Step 6: Final answer
    x = 346,986.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.