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Finding the Fourth Proportional to 620,222, 930,341.64 and 176,990

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Solution

The fourth proportional to 620,222, 930,341.64 and 176,990 is: 265,487.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,222 : 930,341.64 = 176,990 : x
  2. Step 2: Convert to fraction form
    620,222/930,341.64 = 176,990/x
  3. Step 3: Cross multiply
    620,222x = 930,341.64 × 176,990
  4. Step 4: Simplify right side
    620,222x = 164,661,166,863.60
  5. Step 5: Solve for x
    x = 164,661,166,863.60/620,222
  6. Step 6: Final answer
    x = 265,487.47

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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.