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Finding the Fourth Proportional to 817,573.50, 1,226,371.19 and 256,608

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Solution

The fourth proportional to 817,573.50, 1,226,371.19 and 256,608 is: 384,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,573.50 : 1,226,371.19 = 256,608 : x
  2. Step 2: Convert to fraction form
    817,573.50/1,226,371.19 = 256,608/x
  3. Step 3: Cross multiply
    817,573.50x = 1,226,371.19 × 256,608
  4. Step 4: Simplify right side
    817,573.50x = 314,696,657,040.48
  5. Step 5: Solve for x
    x = 314,696,657,040.48/817,573.50
  6. Step 6: Final answer
    x = 384,915.43

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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.