Home / 819,716.28-1,130,822.39-533,131.80

Finding the Fourth Proportional to 819,716.28, 1,130,822.39 and 533,131.80

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Solution

The fourth proportional to 819,716.28, 1,130,822.39 and 533,131.80 is: 735,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,716.28 : 1,130,822.39 = 533,131.80 : x
  2. Step 2: Convert to fraction form
    819,716.28/1,130,822.39 = 533,131.80/x
  3. Step 3: Cross multiply
    819,716.28x = 1,130,822.39 × 533,131.80
  4. Step 4: Simplify right side
    819,716.28x = 602,877,373,433.95
  5. Step 5: Solve for x
    x = 602,877,373,433.95/819,716.28
  6. Step 6: Final answer
    x = 735,470.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.