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Finding the Fourth Proportional to 979,644.80, 1,468,300.80 and 411,024.80

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Solution

The fourth proportional to 979,644.80, 1,468,300.80 and 411,024.80 is: 616,047.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,644.80 : 1,468,300.80 = 411,024.80 : x
  2. Step 2: Convert to fraction form
    979,644.80/1,468,300.80 = 411,024.80/x
  3. Step 3: Cross multiply
    979,644.80x = 1,468,300.80 × 411,024.80
  4. Step 4: Simplify right side
    979,644.80x = 603,508,042,659.84
  5. Step 5: Solve for x
    x = 603,508,042,659.84/979,644.80
  6. Step 6: Final answer
    x = 616,047.82

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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.