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Finding the Fourth Proportional to 467,521.20, 699,532.20 and 310,057.20

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Solution

The fourth proportional to 467,521.20, 699,532.20 and 310,057.20 is: 463,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,521.20 : 699,532.20 = 310,057.20 : x
  2. Step 2: Convert to fraction form
    467,521.20/699,532.20 = 310,057.20/x
  3. Step 3: Cross multiply
    467,521.20x = 699,532.20 × 310,057.20
  4. Step 4: Simplify right side
    467,521.20x = 216,894,995,241.84
  5. Step 5: Solve for x
    x = 216,894,995,241.84/467,521.20
  6. Step 6: Final answer
    x = 463,925.48

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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.