Home / 817,766.91-1,128,518.19-455,183.01

Finding the Fourth Proportional to 817,766.91, 1,128,518.19 and 455,183.01

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Solution

The fourth proportional to 817,766.91, 1,128,518.19 and 455,183.01 is: 628,152.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,766.91 : 1,128,518.19 = 455,183.01 : x
  2. Step 2: Convert to fraction form
    817,766.91/1,128,518.19 = 455,183.01/x
  3. Step 3: Cross multiply
    817,766.91x = 1,128,518.19 × 455,183.01
  4. Step 4: Simplify right side
    817,766.91x = 513,682,306,563.95
  5. Step 5: Solve for x
    x = 513,682,306,563.95/817,766.91
  6. Step 6: Final answer
    x = 628,152.47

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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.