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Finding the Fourth Proportional to 661,008.36, 912,187.26 and 359,202.36

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Solution

The fourth proportional to 661,008.36, 912,187.26 and 359,202.36 is: 495,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,008.36 : 912,187.26 = 359,202.36 : x
  2. Step 2: Convert to fraction form
    661,008.36/912,187.26 = 359,202.36/x
  3. Step 3: Cross multiply
    661,008.36x = 912,187.26 × 359,202.36
  4. Step 4: Simplify right side
    661,008.36x = 327,659,816,553.93
  5. Step 5: Solve for x
    x = 327,659,816,553.93/661,008.36
  6. Step 6: Final answer
    x = 495,696.93

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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.