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Finding the Fourth Proportional to 298,408.60, 447,612.90 and 295,298.20

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Solution

The fourth proportional to 298,408.60, 447,612.90 and 295,298.20 is: 442,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,408.60 : 447,612.90 = 295,298.20 : x
  2. Step 2: Convert to fraction form
    298,408.60/447,612.90 = 295,298.20/x
  3. Step 3: Cross multiply
    298,408.60x = 447,612.90 × 295,298.20
  4. Step 4: Simplify right side
    298,408.60x = 132,179,283,666.78
  5. Step 5: Solve for x
    x = 132,179,283,666.78/298,408.60
  6. Step 6: Final answer
    x = 442,947.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.