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Finding the Fourth Proportional to 763,793.88, 1,053,896.58 and 441,385.80

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Solution

The fourth proportional to 763,793.88, 1,053,896.58 and 441,385.80 is: 609,032.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,793.88 : 1,053,896.58 = 441,385.80 : x
  2. Step 2: Convert to fraction form
    763,793.88/1,053,896.58 = 441,385.80/x
  3. Step 3: Cross multiply
    763,793.88x = 1,053,896.58 × 441,385.80
  4. Step 4: Simplify right side
    763,793.88x = 465,174,985,080.56
  5. Step 5: Solve for x
    x = 465,174,985,080.56/763,793.88
  6. Step 6: Final answer
    x = 609,032.09

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.