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Finding the Fourth Proportional to 504,280.80, 755,384.40 and 346,687.20

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Solution

The fourth proportional to 504,280.80, 755,384.40 and 346,687.20 is: 519,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,280.80 : 755,384.40 = 346,687.20 : x
  2. Step 2: Convert to fraction form
    504,280.80/755,384.40 = 346,687.20/x
  3. Step 3: Cross multiply
    504,280.80x = 755,384.40 × 346,687.20
  4. Step 4: Simplify right side
    504,280.80x = 261,882,102,559.68
  5. Step 5: Solve for x
    x = 261,882,102,559.68/504,280.80
  6. Step 6: Final answer
    x = 519,318.01

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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.