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Finding the Fourth Proportional to 561,937.56, 776,112.54 and 377,855.88

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Solution

The fourth proportional to 561,937.56, 776,112.54 and 377,855.88 is: 521,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,937.56 : 776,112.54 = 377,855.88 : x
  2. Step 2: Convert to fraction form
    561,937.56/776,112.54 = 377,855.88/x
  3. Step 3: Cross multiply
    561,937.56x = 776,112.54 × 377,855.88
  4. Step 4: Simplify right side
    561,937.56x = 293,258,686,780.74
  5. Step 5: Solve for x
    x = 293,258,686,780.74/561,937.56
  6. Step 6: Final answer
    x = 521,870.59

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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.