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Finding the Fourth Proportional to 608,399.53, 911,955.75 and 229,156.17

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Solution

The fourth proportional to 608,399.53, 911,955.75 and 229,156.17 is: 343,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,399.53 : 911,955.75 = 229,156.17 : x
  2. Step 2: Convert to fraction form
    608,399.53/911,955.75 = 229,156.17/x
  3. Step 3: Cross multiply
    608,399.53x = 911,955.75 × 229,156.17
  4. Step 4: Simplify right side
    608,399.53x = 208,980,282,600.31
  5. Step 5: Solve for x
    x = 208,980,282,600.31/608,399.53
  6. Step 6: Final answer
    x = 343,491.86

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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.