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Finding the Fourth Proportional to 576,793.17, 865,187.01 and 320,505.03

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Solution

The fourth proportional to 576,793.17, 865,187.01 and 320,505.03 is: 480,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,793.17 : 865,187.01 = 320,505.03 : x
  2. Step 2: Convert to fraction form
    576,793.17/865,187.01 = 320,505.03/x
  3. Step 3: Cross multiply
    576,793.17x = 865,187.01 × 320,505.03
  4. Step 4: Simplify right side
    576,793.17x = 277,296,788,595.66
  5. Step 5: Solve for x
    x = 277,296,788,595.66/576,793.17
  6. Step 6: Final answer
    x = 480,756.02

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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.