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Finding the Fourth Proportional to 371,201.70, 556,802.55 and 276,723.30

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Solution

The fourth proportional to 371,201.70, 556,802.55 and 276,723.30 is: 415,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,201.70 : 556,802.55 = 276,723.30 : x
  2. Step 2: Convert to fraction form
    371,201.70/556,802.55 = 276,723.30/x
  3. Step 3: Cross multiply
    371,201.70x = 556,802.55 × 276,723.30
  4. Step 4: Simplify right side
    371,201.70x = 154,080,239,084.42
  5. Step 5: Solve for x
    x = 154,080,239,084.42/371,201.70
  6. Step 6: Final answer
    x = 415,084.95

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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.