Home / 618,961.50-928,442.26-408,550.23

Finding the Fourth Proportional to 618,961.50, 928,442.26 and 408,550.23

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Solution

The fourth proportional to 618,961.50, 928,442.26 and 408,550.23 is: 612,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,961.50 : 928,442.26 = 408,550.23 : x
  2. Step 2: Convert to fraction form
    618,961.50/928,442.26 = 408,550.23/x
  3. Step 3: Cross multiply
    618,961.50x = 928,442.26 × 408,550.23
  4. Step 4: Simplify right side
    618,961.50x = 379,315,298,864.72
  5. Step 5: Solve for x
    x = 379,315,298,864.72/618,961.50
  6. Step 6: Final answer
    x = 612,825.35

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Double scale
Find fourth proportional to 618,962.50, 928,443.76 and 408,551.23
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.