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Finding the Fourth Proportional to 591,328.96, 886,980.88 and 191,969.16

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Solution

The fourth proportional to 591,328.96, 886,980.88 and 191,969.16 is: 287,949.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,328.96 : 886,980.88 = 191,969.16 : x
  2. Step 2: Convert to fraction form
    591,328.96/886,980.88 = 191,969.16/x
  3. Step 3: Cross multiply
    591,328.96x = 886,980.88 × 191,969.16
  4. Step 4: Simplify right side
    591,328.96x = 170,272,974,469.66
  5. Step 5: Solve for x
    x = 170,272,974,469.66/591,328.96
  6. Step 6: Final answer
    x = 287,949.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.