Home / 517,719.45-776,632.19-198,140.08

Finding the Fourth Proportional to 517,719.45, 776,632.19 and 198,140.08

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Solution

The fourth proportional to 517,719.45, 776,632.19 and 198,140.08 is: 297,230.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,719.45 : 776,632.19 = 198,140.08 : x
  2. Step 2: Convert to fraction form
    517,719.45/776,632.19 = 198,140.08/x
  3. Step 3: Cross multiply
    517,719.45x = 776,632.19 × 198,140.08
  4. Step 4: Simplify right side
    517,719.45x = 153,881,964,257.18
  5. Step 5: Solve for x
    x = 153,881,964,257.18/517,719.45
  6. Step 6: Final answer
    x = 297,230.41

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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.