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Finding the Fourth Proportional to 479,641.15, 661,887.42 and 264,776.59

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Solution

The fourth proportional to 479,641.15, 661,887.42 and 264,776.59 is: 365,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,641.15 : 661,887.42 = 264,776.59 : x
  2. Step 2: Convert to fraction form
    479,641.15/661,887.42 = 264,776.59/x
  3. Step 3: Cross multiply
    479,641.15x = 661,887.42 × 264,776.59
  4. Step 4: Simplify right side
    479,641.15x = 175,252,294,031.50
  5. Step 5: Solve for x
    x = 175,252,294,031.50/479,641.15
  6. Step 6: Final answer
    x = 365,382.11

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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.