Home / 986,118.39-1,478,056.41-417,144.42

Finding the Fourth Proportional to 986,118.39, 1,478,056.41 and 417,144.42

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Solution

The fourth proportional to 986,118.39, 1,478,056.41 and 417,144.42 is: 625,242.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,118.39 : 1,478,056.41 = 417,144.42 : x
  2. Step 2: Convert to fraction form
    986,118.39/1,478,056.41 = 417,144.42/x
  3. Step 3: Cross multiply
    986,118.39x = 1,478,056.41 × 417,144.42
  4. Step 4: Simplify right side
    986,118.39x = 616,562,983,876.73
  5. Step 5: Solve for x
    x = 616,562,983,876.73/986,118.39
  6. Step 6: Final answer
    x = 625,242.35

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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.