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Finding the Fourth Proportional to 438,909.98, 605,956.80 and 277,903.04

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Solution

The fourth proportional to 438,909.98, 605,956.80 and 277,903.04 is: 383,671.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,909.98 : 605,956.80 = 277,903.04 : x
  2. Step 2: Convert to fraction form
    438,909.98/605,956.80 = 277,903.04/x
  3. Step 3: Cross multiply
    438,909.98x = 605,956.80 × 277,903.04
  4. Step 4: Simplify right side
    438,909.98x = 168,397,232,409.37
  5. Step 5: Solve for x
    x = 168,397,232,409.37/438,909.98
  6. Step 6: Final answer
    x = 383,671.46

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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.