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Finding the Fourth Proportional to 383,089.68, 528,663.74 and 222,038.16

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Solution

The fourth proportional to 383,089.68, 528,663.74 and 222,038.16 is: 306,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,089.68 : 528,663.74 = 222,038.16 : x
  2. Step 2: Convert to fraction form
    383,089.68/528,663.74 = 222,038.16/x
  3. Step 3: Cross multiply
    383,089.68x = 528,663.74 × 222,038.16
  4. Step 4: Simplify right side
    383,089.68x = 117,383,524,088.32
  5. Step 5: Solve for x
    x = 117,383,524,088.32/383,089.68
  6. Step 6: Final answer
    x = 306,412.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.