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Finding the Fourth Proportional to 438,909.35, 605,955.93 and 277,902.41

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Solution

The fourth proportional to 438,909.35, 605,955.93 and 277,902.41 is: 383,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,909.35 : 605,955.93 = 277,902.41 : x
  2. Step 2: Convert to fraction form
    438,909.35/605,955.93 = 277,902.41/x
  3. Step 3: Cross multiply
    438,909.35x = 605,955.93 × 277,902.41
  4. Step 4: Simplify right side
    438,909.35x = 168,396,610,271.01
  5. Step 5: Solve for x
    x = 168,396,610,271.01/438,909.35
  6. Step 6: Final answer
    x = 383,670.60

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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.