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Finding the Fourth Proportional to 591,243.84, 815,904 and 336,591.36

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Solution

The fourth proportional to 591,243.84, 815,904 and 336,591.36 is: 464,488.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,243.84 : 815,904 = 336,591.36 : x
  2. Step 2: Convert to fraction form
    591,243.84/815,904 = 336,591.36/x
  3. Step 3: Cross multiply
    591,243.84x = 815,904 × 336,591.36
  4. Step 4: Simplify right side
    591,243.84x = 274,626,236,989.44
  5. Step 5: Solve for x
    x = 274,626,236,989.44/591,243.84
  6. Step 6: Final answer
    x = 464,488.96

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1.5x scale

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.