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Finding the Fourth Proportional to 479,209.95, 661,309.74 and 264,350.52

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Solution

The fourth proportional to 479,209.95, 661,309.74 and 264,350.52 is: 364,803.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,209.95 : 661,309.74 = 264,350.52 : x
  2. Step 2: Convert to fraction form
    479,209.95/661,309.74 = 264,350.52/x
  3. Step 3: Cross multiply
    479,209.95x = 661,309.74 × 264,350.52
  4. Step 4: Simplify right side
    479,209.95x = 174,817,573,650.07
  5. Step 5: Solve for x
    x = 174,817,573,650.07/479,209.95
  6. Step 6: Final answer
    x = 364,803.72

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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.