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Finding the Fourth Proportional to 369,190.36, 509,482.92 and 199,424.56

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Solution

The fourth proportional to 369,190.36, 509,482.92 and 199,424.56 is: 275,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,190.36 : 509,482.92 = 199,424.56 : x
  2. Step 2: Convert to fraction form
    369,190.36/509,482.92 = 199,424.56/x
  3. Step 3: Cross multiply
    369,190.36x = 509,482.92 × 199,424.56
  4. Step 4: Simplify right side
    369,190.36x = 101,603,407,148.52
  5. Step 5: Solve for x
    x = 101,603,407,148.52/369,190.36
  6. Step 6: Final answer
    x = 275,206.01

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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.