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Finding the Fourth Proportional to 620,253.32, 930,566.75 and 193,771.91

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Solution

The fourth proportional to 620,253.32, 930,566.75 and 193,771.91 is: 290,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,253.32 : 930,566.75 = 193,771.91 : x
  2. Step 2: Convert to fraction form
    620,253.32/930,566.75 = 193,771.91/x
  3. Step 3: Cross multiply
    620,253.32x = 930,566.75 × 193,771.91
  4. Step 4: Simplify right side
    620,253.32x = 180,317,697,887.55
  5. Step 5: Solve for x
    x = 180,317,697,887.55/620,253.32
  6. Step 6: Final answer
    x = 290,716.22

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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.