Home / 806,638.38-1,210,705.25-407,559.63

Finding the Fourth Proportional to 806,638.38, 1,210,705.25 and 407,559.63

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Solution

The fourth proportional to 806,638.38, 1,210,705.25 and 407,559.63 is: 611,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,638.38 : 1,210,705.25 = 407,559.63 : x
  2. Step 2: Convert to fraction form
    806,638.38/1,210,705.25 = 407,559.63/x
  3. Step 3: Cross multiply
    806,638.38x = 1,210,705.25 × 407,559.63
  4. Step 4: Simplify right side
    806,638.38x = 493,434,584,747.96
  5. Step 5: Solve for x
    x = 493,434,584,747.96/806,638.38
  6. Step 6: Final answer
    x = 611,717.22

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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.