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Finding the Fourth Proportional to 292,951.20, 439,426.80 and 242,212.80

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Solution

The fourth proportional to 292,951.20, 439,426.80 and 242,212.80 is: 363,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,951.20 : 439,426.80 = 242,212.80 : x
  2. Step 2: Convert to fraction form
    292,951.20/439,426.80 = 242,212.80/x
  3. Step 3: Cross multiply
    292,951.20x = 439,426.80 × 242,212.80
  4. Step 4: Simplify right side
    292,951.20x = 106,434,795,623.04
  5. Step 5: Solve for x
    x = 106,434,795,623.04/292,951.20
  6. Step 6: Final answer
    x = 363,319.20

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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.