Home / 819,785.70-1,229,851.35-346,227.30

Finding the Fourth Proportional to 819,785.70, 1,229,851.35 and 346,227.30

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Solution

The fourth proportional to 819,785.70, 1,229,851.35 and 346,227.30 is: 519,413.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,785.70 : 1,229,851.35 = 346,227.30 : x
  2. Step 2: Convert to fraction form
    819,785.70/1,229,851.35 = 346,227.30/x
  3. Step 3: Cross multiply
    819,785.70x = 1,229,851.35 × 346,227.30
  4. Step 4: Simplify right side
    819,785.70x = 425,808,112,311.86
  5. Step 5: Solve for x
    x = 425,808,112,311.86/819,785.70
  6. Step 6: Final answer
    x = 519,413.93

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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.