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Finding the Fourth Proportional to 620,600.16, 930,881.64 and 171,348.48

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Solution

The fourth proportional to 620,600.16, 930,881.64 and 171,348.48 is: 257,017.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,600.16 : 930,881.64 = 171,348.48 : x
  2. Step 2: Convert to fraction form
    620,600.16/930,881.64 = 171,348.48/x
  3. Step 3: Cross multiply
    620,600.16x = 930,881.64 × 171,348.48
  4. Step 4: Simplify right side
    620,600.16x = 159,505,154,073.91
  5. Step 5: Solve for x
    x = 159,505,154,073.91/620,600.16
  6. Step 6: Final answer
    x = 257,017.58

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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.