Home / 669,664.12-923,876.04-379,209.01

Finding the Fourth Proportional to 669,664.12, 923,876.04 and 379,209.01

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Solution

The fourth proportional to 669,664.12, 923,876.04 and 379,209.01 is: 523,160.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,664.12 : 923,876.04 = 379,209.01 : x
  2. Step 2: Convert to fraction form
    669,664.12/923,876.04 = 379,209.01/x
  3. Step 3: Cross multiply
    669,664.12x = 923,876.04 × 379,209.01
  4. Step 4: Simplify right side
    669,664.12x = 350,342,118,491.12
  5. Step 5: Solve for x
    x = 350,342,118,491.12/669,664.12
  6. Step 6: Final answer
    x = 523,160.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.