Home / 621,816.10-932,724.15-432,859.30

Finding the Fourth Proportional to 621,816.10, 932,724.15 and 432,859.30

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Solution

The fourth proportional to 621,816.10, 932,724.15 and 432,859.30 is: 649,288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,816.10 : 932,724.15 = 432,859.30 : x
  2. Step 2: Convert to fraction form
    621,816.10/932,724.15 = 432,859.30/x
  3. Step 3: Cross multiply
    621,816.10x = 932,724.15 × 432,859.30
  4. Step 4: Simplify right side
    621,816.10x = 403,738,322,662.10
  5. Step 5: Solve for x
    x = 403,738,322,662.10/621,816.10
  6. Step 6: Final answer
    x = 649,288.95

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Half scale
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Double scale
Find fourth proportional to 621,817.10, 932,725.65 and 432,860.30
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.