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Finding the Fourth Proportional to 579,734.94, 869,661.99 and 200,655.06

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Solution

The fourth proportional to 579,734.94, 869,661.99 and 200,655.06 is: 301,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,734.94 : 869,661.99 = 200,655.06 : x
  2. Step 2: Convert to fraction form
    579,734.94/869,661.99 = 200,655.06/x
  3. Step 3: Cross multiply
    579,734.94x = 869,661.99 × 200,655.06
  4. Step 4: Simplify right side
    579,734.94x = 174,502,074,434.86
  5. Step 5: Solve for x
    x = 174,502,074,434.86/579,734.94
  6. Step 6: Final answer
    x = 301,003.21

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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.