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Finding the Fourth Proportional to 349,698.40, 524,806.80 and 231,330.40

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Solution

The fourth proportional to 349,698.40, 524,806.80 and 231,330.40 is: 347,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,698.40 : 524,806.80 = 231,330.40 : x
  2. Step 2: Convert to fraction form
    349,698.40/524,806.80 = 231,330.40/x
  3. Step 3: Cross multiply
    349,698.40x = 524,806.80 × 231,330.40
  4. Step 4: Simplify right side
    349,698.40x = 121,403,766,966.72
  5. Step 5: Solve for x
    x = 121,403,766,966.72/349,698.40
  6. Step 6: Final answer
    x = 347,167.06

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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.