Home / 817,739.01-1,128,516.91-455,185.98

Finding the Fourth Proportional to 817,739.01, 1,128,516.91 and 455,185.98

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Solution

The fourth proportional to 817,739.01, 1,128,516.91 and 455,185.98 is: 628,177.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,739.01 : 1,128,516.91 = 455,185.98 : x
  2. Step 2: Convert to fraction form
    817,739.01/1,128,516.91 = 455,185.98/x
  3. Step 3: Cross multiply
    817,739.01x = 1,128,516.91 × 455,185.98
  4. Step 4: Simplify right side
    817,739.01x = 513,685,074,486.96
  5. Step 5: Solve for x
    x = 513,685,074,486.96/817,739.01
  6. Step 6: Final answer
    x = 628,177.29

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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.