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Finding the Fourth Proportional to 474,044.80, 709,339.20 and 349,628.80

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Solution

The fourth proportional to 474,044.80, 709,339.20 and 349,628.80 is: 523,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,044.80 : 709,339.20 = 349,628.80 : x
  2. Step 2: Convert to fraction form
    474,044.80/709,339.20 = 349,628.80/x
  3. Step 3: Cross multiply
    474,044.80x = 709,339.20 × 349,628.80
  4. Step 4: Simplify right side
    474,044.80x = 248,005,413,288.96
  5. Step 5: Solve for x
    x = 248,005,413,288.96/474,044.80
  6. Step 6: Final answer
    x = 523,168.72

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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.