Home / 891,939.42-1,230,879.60-484,041.15

Finding the Fourth Proportional to 891,939.42, 1,230,879.60 and 484,041.15

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Solution

The fourth proportional to 891,939.42, 1,230,879.60 and 484,041.15 is: 667,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,939.42 : 1,230,879.60 = 484,041.15 : x
  2. Step 2: Convert to fraction form
    891,939.42/1,230,879.60 = 484,041.15/x
  3. Step 3: Cross multiply
    891,939.42x = 1,230,879.60 × 484,041.15
  4. Step 4: Simplify right side
    891,939.42x = 595,796,377,095.54
  5. Step 5: Solve for x
    x = 595,796,377,095.54/891,939.42
  6. Step 6: Final answer
    x = 667,978.52

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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.