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Finding the Fourth Proportional to 330,653.40, 456,269.70 and 185,464.92

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Solution

The fourth proportional to 330,653.40, 456,269.70 and 185,464.92 is: 255,923.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,653.40 : 456,269.70 = 185,464.92 : x
  2. Step 2: Convert to fraction form
    330,653.40/456,269.70 = 185,464.92/x
  3. Step 3: Cross multiply
    330,653.40x = 456,269.70 × 185,464.92
  4. Step 4: Simplify right side
    330,653.40x = 84,622,023,408.92
  5. Step 5: Solve for x
    x = 84,622,023,408.92/330,653.40
  6. Step 6: Final answer
    x = 255,923.65

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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.