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Finding the Fourth Proportional to 354,266.80, 531,400.20 and 334,913.20

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Solution

The fourth proportional to 354,266.80, 531,400.20 and 334,913.20 is: 502,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,266.80 : 531,400.20 = 334,913.20 : x
  2. Step 2: Convert to fraction form
    354,266.80/531,400.20 = 334,913.20/x
  3. Step 3: Cross multiply
    354,266.80x = 531,400.20 × 334,913.20
  4. Step 4: Simplify right side
    354,266.80x = 177,972,941,462.64
  5. Step 5: Solve for x
    x = 177,972,941,462.64/354,266.80
  6. Step 6: Final answer
    x = 502,369.80

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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.