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Finding the Fourth Proportional to 583,136.89, 804,722.75 and 328,487.47

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Solution

The fourth proportional to 583,136.89, 804,722.75 and 328,487.47 is: 453,309.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,136.89 : 804,722.75 = 328,487.47 : x
  2. Step 2: Convert to fraction form
    583,136.89/804,722.75 = 328,487.47/x
  3. Step 3: Cross multiply
    583,136.89x = 804,722.75 × 328,487.47
  4. Step 4: Simplify right side
    583,136.89x = 264,341,337,776.53
  5. Step 5: Solve for x
    x = 264,341,337,776.53/583,136.89
  6. Step 6: Final answer
    x = 453,309.24

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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.