Home / 806,836.20-1,210,254.30-541,415.40

Finding the Fourth Proportional to 806,836.20, 1,210,254.30 and 541,415.40

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Solution

The fourth proportional to 806,836.20, 1,210,254.30 and 541,415.40 is: 812,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,836.20 : 1,210,254.30 = 541,415.40 : x
  2. Step 2: Convert to fraction form
    806,836.20/1,210,254.30 = 541,415.40/x
  3. Step 3: Cross multiply
    806,836.20x = 1,210,254.30 × 541,415.40
  4. Step 4: Simplify right side
    806,836.20x = 655,250,315,936.22
  5. Step 5: Solve for x
    x = 655,250,315,936.22/806,836.20
  6. Step 6: Final answer
    x = 812,123.10

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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.