Home / 685,161.16-945,498.27-379,238.14

Finding the Fourth Proportional to 685,161.16, 945,498.27 and 379,238.14

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Solution

The fourth proportional to 685,161.16, 945,498.27 and 379,238.14 is: 523,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,161.16 : 945,498.27 = 379,238.14 : x
  2. Step 2: Convert to fraction form
    685,161.16/945,498.27 = 379,238.14/x
  3. Step 3: Cross multiply
    685,161.16x = 945,498.27 × 379,238.14
  4. Step 4: Simplify right side
    685,161.16x = 358,569,005,288.02
  5. Step 5: Solve for x
    x = 358,569,005,288.02/685,161.16
  6. Step 6: Final answer
    x = 523,335.28

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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.