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Finding the Fourth Proportional to 356,036.31, 534,423.52 and 238,528.80

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Solution

The fourth proportional to 356,036.31, 534,423.52 and 238,528.80 is: 358,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,036.31 : 534,423.52 = 238,528.80 : x
  2. Step 2: Convert to fraction form
    356,036.31/534,423.52 = 238,528.80/x
  3. Step 3: Cross multiply
    356,036.31x = 534,423.52 × 238,528.80
  4. Step 4: Simplify right side
    356,036.31x = 127,475,401,215.54
  5. Step 5: Solve for x
    x = 127,475,401,215.54/356,036.31
  6. Step 6: Final answer
    x = 358,040.45

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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.