Home / 808,833.60-1,213,250.40-387,892.80

Finding the Fourth Proportional to 808,833.60, 1,213,250.40 and 387,892.80

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Solution

The fourth proportional to 808,833.60, 1,213,250.40 and 387,892.80 is: 581,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,833.60 : 1,213,250.40 = 387,892.80 : x
  2. Step 2: Convert to fraction form
    808,833.60/1,213,250.40 = 387,892.80/x
  3. Step 3: Cross multiply
    808,833.60x = 1,213,250.40 × 387,892.80
  4. Step 4: Simplify right side
    808,833.60x = 470,611,094,757.12
  5. Step 5: Solve for x
    x = 470,611,094,757.12/808,833.60
  6. Step 6: Final answer
    x = 581,839.20

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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.