Home / 806,205.90-1,209,308.85-293,909.49

Finding the Fourth Proportional to 806,205.90, 1,209,308.85 and 293,909.49

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Solution

The fourth proportional to 806,205.90, 1,209,308.85 and 293,909.49 is: 440,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,205.90 : 1,209,308.85 = 293,909.49 : x
  2. Step 2: Convert to fraction form
    806,205.90/1,209,308.85 = 293,909.49/x
  3. Step 3: Cross multiply
    806,205.90x = 1,209,308.85 × 293,909.49
  4. Step 4: Simplify right side
    806,205.90x = 355,427,347,355.99
  5. Step 5: Solve for x
    x = 355,427,347,355.99/806,205.90
  6. Step 6: Final answer
    x = 440,864.24

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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.