Home / 806,544.20-1,209,816.30-541,123.40

Finding the Fourth Proportional to 806,544.20, 1,209,816.30 and 541,123.40

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Solution

The fourth proportional to 806,544.20, 1,209,816.30 and 541,123.40 is: 811,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,544.20 : 1,209,816.30 = 541,123.40 : x
  2. Step 2: Convert to fraction form
    806,544.20/1,209,816.30 = 541,123.40/x
  3. Step 3: Cross multiply
    806,544.20x = 1,209,816.30 × 541,123.40
  4. Step 4: Simplify right side
    806,544.20x = 654,659,909,631.42
  5. Step 5: Solve for x
    x = 654,659,909,631.42/806,544.20
  6. Step 6: Final answer
    x = 811,685.10

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Double scale
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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.