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Finding the Fourth Proportional to 472,844.80, 709,267.20 and 192,563.20

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Solution

The fourth proportional to 472,844.80, 709,267.20 and 192,563.20 is: 288,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,844.80 : 709,267.20 = 192,563.20 : x
  2. Step 2: Convert to fraction form
    472,844.80/709,267.20 = 192,563.20/x
  3. Step 3: Cross multiply
    472,844.80x = 709,267.20 × 192,563.20
  4. Step 4: Simplify right side
    472,844.80x = 136,578,761,687.04
  5. Step 5: Solve for x
    x = 136,578,761,687.04/472,844.80
  6. Step 6: Final answer
    x = 288,844.80

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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.