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Finding the Fourth Proportional to 487,570.10, 731,063.55 and 251,374.10

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Solution

The fourth proportional to 487,570.10, 731,063.55 and 251,374.10 is: 376,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,570.10 : 731,063.55 = 251,374.10 : x
  2. Step 2: Convert to fraction form
    487,570.10/731,063.55 = 251,374.10/x
  3. Step 3: Cross multiply
    487,570.10x = 731,063.55 × 251,374.10
  4. Step 4: Simplify right side
    487,570.10x = 183,770,441,924.06
  5. Step 5: Solve for x
    x = 183,770,441,924.06/487,570.10
  6. Step 6: Final answer
    x = 376,910.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.