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Finding the Fourth Proportional to 383,248.07, 528,894.33 and 219,934.45

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Solution

The fourth proportional to 383,248.07, 528,894.33 and 219,934.45 is: 303,516.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,248.07 : 528,894.33 = 219,934.45 : x
  2. Step 2: Convert to fraction form
    383,248.07/528,894.33 = 219,934.45/x
  3. Step 3: Cross multiply
    383,248.07x = 528,894.33 × 219,934.45
  4. Step 4: Simplify right side
    383,248.07x = 116,322,083,413.03
  5. Step 5: Solve for x
    x = 116,322,083,413.03/383,248.07
  6. Step 6: Final answer
    x = 303,516.42

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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.