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Finding the Fourth Proportional to 368,306.24, 508,267.86 and 217,403.24

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Solution

The fourth proportional to 368,306.24, 508,267.86 and 217,403.24 is: 300,019.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,306.24 : 508,267.86 = 217,403.24 : x
  2. Step 2: Convert to fraction form
    368,306.24/508,267.86 = 217,403.24/x
  3. Step 3: Cross multiply
    368,306.24x = 508,267.86 × 217,403.24
  4. Step 4: Simplify right side
    368,306.24x = 110,499,079,551.87
  5. Step 5: Solve for x
    x = 110,499,079,551.87/368,306.24
  6. Step 6: Final answer
    x = 300,019.57

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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.