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Finding the Fourth Proportional to 591,144.24, 815,780 and 336,495.48

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Solution

The fourth proportional to 591,144.24, 815,780 and 336,495.48 is: 464,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,144.24 : 815,780 = 336,495.48 : x
  2. Step 2: Convert to fraction form
    591,144.24/815,780 = 336,495.48/x
  3. Step 3: Cross multiply
    591,144.24x = 815,780 × 336,495.48
  4. Step 4: Simplify right side
    591,144.24x = 274,506,282,674.40
  5. Step 5: Solve for x
    x = 274,506,282,674.40/591,144.24
  6. Step 6: Final answer
    x = 464,364.30

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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.