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Finding the Fourth Proportional to 304,092.80, 456,139.20 and 192,118.40

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Solution

The fourth proportional to 304,092.80, 456,139.20 and 192,118.40 is: 288,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,092.80 : 456,139.20 = 192,118.40 : x
  2. Step 2: Convert to fraction form
    304,092.80/456,139.20 = 192,118.40/x
  3. Step 3: Cross multiply
    304,092.80x = 456,139.20 × 192,118.40
  4. Step 4: Simplify right side
    304,092.80x = 87,632,733,281.28
  5. Step 5: Solve for x
    x = 87,632,733,281.28/304,092.80
  6. Step 6: Final answer
    x = 288,177.60

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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.