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Finding the Fourth Proportional to 531,395.33, 797,248.31 and 171,557.78

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Solution

The fourth proportional to 531,395.33, 797,248.31 and 171,557.78 is: 257,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,395.33 : 797,248.31 = 171,557.78 : x
  2. Step 2: Convert to fraction form
    531,395.33/797,248.31 = 171,557.78/x
  3. Step 3: Cross multiply
    531,395.33x = 797,248.31 × 171,557.78
  4. Step 4: Simplify right side
    531,395.33x = 136,774,145,328.32
  5. Step 5: Solve for x
    x = 136,774,145,328.32/531,395.33
  6. Step 6: Final answer
    x = 257,386.81

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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.