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Finding the Fourth Proportional to 347,782.40, 520,994.44 and 239,692.43

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Solution

The fourth proportional to 347,782.40, 520,994.44 and 239,692.43 is: 359,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,782.40 : 520,994.44 = 239,692.43 : x
  2. Step 2: Convert to fraction form
    347,782.40/520,994.44 = 239,692.43/x
  3. Step 3: Cross multiply
    347,782.40x = 520,994.44 × 239,692.43
  4. Step 4: Simplify right side
    347,782.40x = 124,878,423,593.92
  5. Step 5: Solve for x
    x = 124,878,423,593.92/347,782.40
  6. Step 6: Final answer
    x = 359,070.56

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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.