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Finding the Fourth Proportional to 538,570.36, 807,607.20 and 159,355.48

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Solution

The fourth proportional to 538,570.36, 807,607.20 and 159,355.48 is: 238,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,570.36 : 807,607.20 = 159,355.48 : x
  2. Step 2: Convert to fraction form
    538,570.36/807,607.20 = 159,355.48/x
  3. Step 3: Cross multiply
    538,570.36x = 807,607.20 × 159,355.48
  4. Step 4: Simplify right side
    538,570.36x = 128,696,633,007.46
  5. Step 5: Solve for x
    x = 128,696,633,007.46/538,570.36
  6. Step 6: Final answer
    x = 238,959.74

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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.