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Finding the Fourth Proportional to 362,372.23, 543,753.81 and 212,904.45

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Solution

The fourth proportional to 362,372.23, 543,753.81 and 212,904.45 is: 319,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,372.23 : 543,753.81 = 212,904.45 : x
  2. Step 2: Convert to fraction form
    362,372.23/543,753.81 = 212,904.45/x
  3. Step 3: Cross multiply
    362,372.23x = 543,753.81 × 212,904.45
  4. Step 4: Simplify right side
    362,372.23x = 115,767,605,853.46
  5. Step 5: Solve for x
    x = 115,767,605,853.46/362,372.23
  6. Step 6: Final answer
    x = 319,471.52

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1.5x scale

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.