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Finding the Fourth Proportional to 479,152.80, 718,124.40 and 242,560.80

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Solution

The fourth proportional to 479,152.80, 718,124.40 and 242,560.80 is: 363,535.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,152.80 : 718,124.40 = 242,560.80 : x
  2. Step 2: Convert to fraction form
    479,152.80/718,124.40 = 242,560.80/x
  3. Step 3: Cross multiply
    479,152.80x = 718,124.40 × 242,560.80
  4. Step 4: Simplify right side
    479,152.80x = 174,188,828,963.52
  5. Step 5: Solve for x
    x = 174,188,828,963.52/479,152.80
  6. Step 6: Final answer
    x = 363,535.03

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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.