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Finding the Fourth Proportional to 369,083.99, 509,335.88 and 199,318.11

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Solution

The fourth proportional to 369,083.99, 509,335.88 and 199,318.11 is: 275,058.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,083.99 : 509,335.88 = 199,318.11 : x
  2. Step 2: Convert to fraction form
    369,083.99/509,335.88 = 199,318.11/x
  3. Step 3: Cross multiply
    369,083.99x = 509,335.88 × 199,318.11
  4. Step 4: Simplify right side
    369,083.99x = 101,519,864,956.79
  5. Step 5: Solve for x
    x = 101,519,864,956.79/369,083.99
  6. Step 6: Final answer
    x = 275,058.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.