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Finding the Fourth Proportional to 383,098.30, 528,675.65 and 222,046.77

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Solution

The fourth proportional to 383,098.30, 528,675.65 and 222,046.77 is: 306,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,098.30 : 528,675.65 = 222,046.77 : x
  2. Step 2: Convert to fraction form
    383,098.30/528,675.65 = 222,046.77/x
  3. Step 3: Cross multiply
    383,098.30x = 528,675.65 × 222,046.77
  4. Step 4: Simplify right side
    383,098.30x = 117,390,717,816.77
  5. Step 5: Solve for x
    x = 117,390,717,816.77/383,098.30
  6. Step 6: Final answer
    x = 306,424.53

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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.