Home / 927,380.66-1,398,222.72-921,623.40

Finding the Fourth Proportional to 927,380.66, 1,398,222.72 and 921,623.40

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Solution

The fourth proportional to 927,380.66, 1,398,222.72 and 921,623.40 is: 1,389,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,380.66 : 1,398,222.72 = 921,623.40 : x
  2. Step 2: Convert to fraction form
    927,380.66/1,398,222.72 = 921,623.40/x
  3. Step 3: Cross multiply
    927,380.66x = 1,398,222.72 × 921,623.40
  4. Step 4: Simplify right side
    927,380.66x = 1,288,634,777,163.65
  5. Step 5: Solve for x
    x = 1,288,634,777,163.65/927,380.66
  6. Step 6: Final answer
    x = 1,389,542.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.