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Finding the Fourth Proportional to 369,490.94, 509,897.27 and 199,725.06

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Solution

The fourth proportional to 369,490.94, 509,897.27 and 199,725.06 is: 275,620.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,490.94 : 509,897.27 = 199,725.06 : x
  2. Step 2: Convert to fraction form
    369,490.94/509,897.27 = 199,725.06/x
  3. Step 3: Cross multiply
    369,490.94x = 509,897.27 × 199,725.06
  4. Step 4: Simplify right side
    369,490.94x = 101,839,261,845.96
  5. Step 5: Solve for x
    x = 101,839,261,845.96/369,490.94
  6. Step 6: Final answer
    x = 275,620.46

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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.