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Finding the Fourth Proportional to 349,743.80, 524,615.70 and 330,060.80

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Solution

The fourth proportional to 349,743.80, 524,615.70 and 330,060.80 is: 495,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,743.80 : 524,615.70 = 330,060.80 : x
  2. Step 2: Convert to fraction form
    349,743.80/524,615.70 = 330,060.80/x
  3. Step 3: Cross multiply
    349,743.80x = 524,615.70 × 330,060.80
  4. Step 4: Simplify right side
    349,743.80x = 173,155,077,634.56
  5. Step 5: Solve for x
    x = 173,155,077,634.56/349,743.80
  6. Step 6: Final answer
    x = 495,091.20

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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.