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Finding the Fourth Proportional to 285,616.11, 425,870.69 and 277,769.06

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Solution

The fourth proportional to 285,616.11, 425,870.69 and 277,769.06 is: 414,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,616.11 : 425,870.69 = 277,769.06 : x
  2. Step 2: Convert to fraction form
    285,616.11/425,870.69 = 277,769.06/x
  3. Step 3: Cross multiply
    285,616.11x = 425,870.69 × 277,769.06
  4. Step 4: Simplify right side
    285,616.11x = 118,293,698,245.47
  5. Step 5: Solve for x
    x = 118,293,698,245.47/285,616.11
  6. Step 6: Final answer
    x = 414,170.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.