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Finding the Fourth Proportional to 591,193.60, 886,617.60 and 212,070.40

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Solution

The fourth proportional to 591,193.60, 886,617.60 and 212,070.40 is: 318,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,193.60 : 886,617.60 = 212,070.40 : x
  2. Step 2: Convert to fraction form
    591,193.60/886,617.60 = 212,070.40/x
  3. Step 3: Cross multiply
    591,193.60x = 886,617.60 × 212,070.40
  4. Step 4: Simplify right side
    591,193.60x = 188,025,349,079.04
  5. Step 5: Solve for x
    x = 188,025,349,079.04/591,193.60
  6. Step 6: Final answer
    x = 318,043.61

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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.