Home / 289,963.03-434,984.09-168,440.66

Finding the Fourth Proportional to 289,963.03, 434,984.09 and 168,440.66

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Solution

The fourth proportional to 289,963.03, 434,984.09 and 168,440.66 is: 252,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,963.03 : 434,984.09 = 168,440.66 : x
  2. Step 2: Convert to fraction form
    289,963.03/434,984.09 = 168,440.66/x
  3. Step 3: Cross multiply
    289,963.03x = 434,984.09 × 168,440.66
  4. Step 4: Simplify right side
    289,963.03x = 73,269,007,209.10
  5. Step 5: Solve for x
    x = 73,269,007,209.10/289,963.03
  6. Step 6: Final answer
    x = 252,683.96

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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.