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Finding the Fourth Proportional to 500,161.96, 690,223.53 and 273,807.46

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Solution

The fourth proportional to 500,161.96, 690,223.53 and 273,807.46 is: 377,854.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,161.96 : 690,223.53 = 273,807.46 : x
  2. Step 2: Convert to fraction form
    500,161.96/690,223.53 = 273,807.46/x
  3. Step 3: Cross multiply
    500,161.96x = 690,223.53 × 273,807.46
  4. Step 4: Simplify right side
    500,161.96x = 188,988,351,581.53
  5. Step 5: Solve for x
    x = 188,988,351,581.53/500,161.96
  6. Step 6: Final answer
    x = 377,854.31

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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.