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Finding the Fourth Proportional to 349,973.40, 525,219.30 and 231,605.40

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Solution

The fourth proportional to 349,973.40, 525,219.30 and 231,605.40 is: 347,579.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,973.40 : 525,219.30 = 231,605.40 : x
  2. Step 2: Convert to fraction form
    349,973.40/525,219.30 = 231,605.40/x
  3. Step 3: Cross multiply
    349,973.40x = 525,219.30 × 231,605.40
  4. Step 4: Simplify right side
    349,973.40x = 121,643,626,064.22
  5. Step 5: Solve for x
    x = 121,643,626,064.22/349,973.40
  6. Step 6: Final answer
    x = 347,579.63

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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.