Home / 817,727.16-1,128,454.86-455,145.24

Finding the Fourth Proportional to 817,727.16, 1,128,454.86 and 455,145.24

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Solution

The fourth proportional to 817,727.16, 1,128,454.86 and 455,145.24 is: 628,095.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,727.16 : 1,128,454.86 = 455,145.24 : x
  2. Step 2: Convert to fraction form
    817,727.16/1,128,454.86 = 455,145.24/x
  3. Step 3: Cross multiply
    817,727.16x = 1,128,454.86 × 455,145.24
  4. Step 4: Simplify right side
    817,727.16x = 513,610,858,083.87
  5. Step 5: Solve for x
    x = 513,610,858,083.87/817,727.16
  6. Step 6: Final answer
    x = 628,095.63

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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.