Home / 819,453.80-1,229,180.70-803,707.40

Finding the Fourth Proportional to 819,453.80, 1,229,180.70 and 803,707.40

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Solution

The fourth proportional to 819,453.80, 1,229,180.70 and 803,707.40 is: 1,205,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,453.80 : 1,229,180.70 = 803,707.40 : x
  2. Step 2: Convert to fraction form
    819,453.80/1,229,180.70 = 803,707.40/x
  3. Step 3: Cross multiply
    819,453.80x = 1,229,180.70 × 803,707.40
  4. Step 4: Simplify right side
    819,453.80x = 987,901,624,527.18
  5. Step 5: Solve for x
    x = 987,901,624,527.18/819,453.80
  6. Step 6: Final answer
    x = 1,205,561.10

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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.