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Finding the Fourth Proportional to 656,145.78, 984,601.40 and 356,658.00

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Solution

The fourth proportional to 656,145.78, 984,601.40 and 356,658.00 is: 535,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,145.78 : 984,601.40 = 356,658.00 : x
  2. Step 2: Convert to fraction form
    656,145.78/984,601.40 = 356,658.00/x
  3. Step 3: Cross multiply
    656,145.78x = 984,601.40 × 356,658.00
  4. Step 4: Simplify right side
    656,145.78x = 351,165,960,645.66
  5. Step 5: Solve for x
    x = 351,165,960,645.66/656,145.78
  6. Step 6: Final answer
    x = 535,195.03

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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.