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Finding the Fourth Proportional to 891,881, 1,230,795.80 and 534,185

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Solution

The fourth proportional to 891,881, 1,230,795.80 and 534,185 is: 737,175.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,881 : 1,230,795.80 = 534,185 : x
  2. Step 2: Convert to fraction form
    891,881/1,230,795.80 = 534,185/x
  3. Step 3: Cross multiply
    891,881x = 1,230,795.80 × 534,185
  4. Step 4: Simplify right side
    891,881x = 657,472,654,423
  5. Step 5: Solve for x
    x = 657,472,654,423/891,881
  6. Step 6: Final answer
    x = 737,175.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.