Home / 862,079.09-1,189,706.04-480,105.86

Finding the Fourth Proportional to 862,079.09, 1,189,706.04 and 480,105.86

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Solution

The fourth proportional to 862,079.09, 1,189,706.04 and 480,105.86 is: 662,566.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,079.09 : 1,189,706.04 = 480,105.86 : x
  2. Step 2: Convert to fraction form
    862,079.09/1,189,706.04 = 480,105.86/x
  3. Step 3: Cross multiply
    862,079.09x = 1,189,706.04 × 480,105.86
  4. Step 4: Simplify right side
    862,079.09x = 571,184,844,455.66
  5. Step 5: Solve for x
    x = 571,184,844,455.66/862,079.09
  6. Step 6: Final answer
    x = 662,566.64

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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.