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Finding the Fourth Proportional to 524,060.40, 784,276.20 and 313,849.20

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Solution

The fourth proportional to 524,060.40, 784,276.20 and 313,849.20 is: 469,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,060.40 : 784,276.20 = 313,849.20 : x
  2. Step 2: Convert to fraction form
    524,060.40/784,276.20 = 313,849.20/x
  3. Step 3: Cross multiply
    524,060.40x = 784,276.20 × 313,849.20
  4. Step 4: Simplify right side
    524,060.40x = 246,144,457,949.04
  5. Step 5: Solve for x
    x = 246,144,457,949.04/524,060.40
  6. Step 6: Final answer
    x = 469,687.19

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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.