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Finding the Fourth Proportional to 866,791.75, 1,196,149.57 and 479,597.07

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Solution

The fourth proportional to 866,791.75, 1,196,149.57 and 479,597.07 is: 661,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,791.75 : 1,196,149.57 = 479,597.07 : x
  2. Step 2: Convert to fraction form
    866,791.75/1,196,149.57 = 479,597.07/x
  3. Step 3: Cross multiply
    866,791.75x = 1,196,149.57 × 479,597.07
  4. Step 4: Simplify right side
    866,791.75x = 573,669,829,053.76
  5. Step 5: Solve for x
    x = 573,669,829,053.76/866,791.75
  6. Step 6: Final answer
    x = 661,831.21

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Double scale
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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.