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Finding the Fourth Proportional to 439,994.68, 607,192.50 and 238,790.68

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Solution

The fourth proportional to 439,994.68, 607,192.50 and 238,790.68 is: 329,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,994.68 : 607,192.50 = 238,790.68 : x
  2. Step 2: Convert to fraction form
    439,994.68/607,192.50 = 238,790.68/x
  3. Step 3: Cross multiply
    439,994.68x = 607,192.50 × 238,790.68
  4. Step 4: Simplify right side
    439,994.68x = 144,991,909,965.90
  5. Step 5: Solve for x
    x = 144,991,909,965.90/439,994.68
  6. Step 6: Final answer
    x = 329,531.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.