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Finding the Fourth Proportional to 472,384.80, 708,577.20 and 192,103.20

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Solution

The fourth proportional to 472,384.80, 708,577.20 and 192,103.20 is: 288,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,384.80 : 708,577.20 = 192,103.20 : x
  2. Step 2: Convert to fraction form
    472,384.80/708,577.20 = 192,103.20/x
  3. Step 3: Cross multiply
    472,384.80x = 708,577.20 × 192,103.20
  4. Step 4: Simplify right side
    472,384.80x = 136,119,947,567.04
  5. Step 5: Solve for x
    x = 136,119,947,567.04/472,384.80
  6. Step 6: Final answer
    x = 288,154.80

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Similar ratio
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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.