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Finding the Fourth Proportional to 948,647.84, 1,422,866.40 and 238,676

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Solution

The fourth proportional to 948,647.84, 1,422,866.40 and 238,676 is: 357,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,647.84 : 1,422,866.40 = 238,676 : x
  2. Step 2: Convert to fraction form
    948,647.84/1,422,866.40 = 238,676/x
  3. Step 3: Cross multiply
    948,647.84x = 1,422,866.40 × 238,676
  4. Step 4: Simplify right side
    948,647.84x = 339,604,060,886.40
  5. Step 5: Solve for x
    x = 339,604,060,886.40/948,647.84
  6. Step 6: Final answer
    x = 357,987.49

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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.