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Finding the Fourth Proportional to 484,595.20, 726,115.20 and 456,601.60

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Solution

The fourth proportional to 484,595.20, 726,115.20 and 456,601.60 is: 684,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,595.20 : 726,115.20 = 456,601.60 : x
  2. Step 2: Convert to fraction form
    484,595.20/726,115.20 = 456,601.60/x
  3. Step 3: Cross multiply
    484,595.20x = 726,115.20 × 456,601.60
  4. Step 4: Simplify right side
    484,595.20x = 331,545,362,104.32
  5. Step 5: Solve for x
    x = 331,545,362,104.32/484,595.20
  6. Step 6: Final answer
    x = 684,169.72

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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.