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Finding the Fourth Proportional to 866,791.68, 1,196,149.50 and 479,597.01

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Solution

The fourth proportional to 866,791.68, 1,196,149.50 and 479,597.01 is: 661,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,791.68 : 1,196,149.50 = 479,597.01 : x
  2. Step 2: Convert to fraction form
    866,791.68/1,196,149.50 = 479,597.01/x
  3. Step 3: Cross multiply
    866,791.68x = 1,196,149.50 × 479,597.01
  4. Step 4: Simplify right side
    866,791.68x = 573,669,723,713.00
  5. Step 5: Solve for x
    x = 573,669,723,713.00/866,791.68
  6. Step 6: Final answer
    x = 661,831.14

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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.