Home / 923,324.80-1,384,792.80-390,863.20

Finding the Fourth Proportional to 923,324.80, 1,384,792.80 and 390,863.20

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Solution

The fourth proportional to 923,324.80, 1,384,792.80 and 390,863.20 is: 586,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,324.80 : 1,384,792.80 = 390,863.20 : x
  2. Step 2: Convert to fraction form
    923,324.80/1,384,792.80 = 390,863.20/x
  3. Step 3: Cross multiply
    923,324.80x = 1,384,792.80 × 390,863.20
  4. Step 4: Simplify right side
    923,324.80x = 541,264,545,144.96
  5. Step 5: Solve for x
    x = 541,264,545,144.96/923,324.80
  6. Step 6: Final answer
    x = 586,212.51

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Double scale
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Similar ratio
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1.5x scale

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.