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Finding the Fourth Proportional to 369,177.71, 509,465.25 and 199,411.84

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Solution

The fourth proportional to 369,177.71, 509,465.25 and 199,411.84 is: 275,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,177.71 : 509,465.25 = 199,411.84 : x
  2. Step 2: Convert to fraction form
    369,177.71/509,465.25 = 199,411.84/x
  3. Step 3: Cross multiply
    369,177.71x = 509,465.25 × 199,411.84
  4. Step 4: Simplify right side
    369,177.71x = 101,593,399,374.18
  5. Step 5: Solve for x
    x = 101,593,399,374.18/369,177.71
  6. Step 6: Final answer
    x = 275,188.34

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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.