Home / 822,389.40-1,233,584.10-402,485.40

Finding the Fourth Proportional to 822,389.40, 1,233,584.10 and 402,485.40

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Solution

The fourth proportional to 822,389.40, 1,233,584.10 and 402,485.40 is: 603,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,389.40 : 1,233,584.10 = 402,485.40 : x
  2. Step 2: Convert to fraction form
    822,389.40/1,233,584.10 = 402,485.40/x
  3. Step 3: Cross multiply
    822,389.40x = 1,233,584.10 × 402,485.40
  4. Step 4: Simplify right side
    822,389.40x = 496,499,589,922.14
  5. Step 5: Solve for x
    x = 496,499,589,922.14/822,389.40
  6. Step 6: Final answer
    x = 603,728.10

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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.