Home / 1,118,803.58-1,678,370.75-408,665.54

Finding the Fourth Proportional to 1,118,803.58, 1,678,370.75 and 408,665.54

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Solution

The fourth proportional to 1,118,803.58, 1,678,370.75 and 408,665.54 is: 613,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,803.58 : 1,678,370.75 = 408,665.54 : x
  2. Step 2: Convert to fraction form
    1,118,803.58/1,678,370.75 = 408,665.54/x
  3. Step 3: Cross multiply
    1,118,803.58x = 1,678,370.75 × 408,665.54
  4. Step 4: Simplify right side
    1,118,803.58x = 685,892,278,433.77
  5. Step 5: Solve for x
    x = 685,892,278,433.77/1,118,803.58
  6. Step 6: Final answer
    x = 613,058.71

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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.