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Finding the Fourth Proportional to 314,601.52, 434,299.44 and 201,490.96

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Solution

The fourth proportional to 314,601.52, 434,299.44 and 201,490.96 is: 278,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,601.52 : 434,299.44 = 201,490.96 : x
  2. Step 2: Convert to fraction form
    314,601.52/434,299.44 = 201,490.96/x
  3. Step 3: Cross multiply
    314,601.52x = 434,299.44 × 201,490.96
  4. Step 4: Simplify right side
    314,601.52x = 87,507,411,093.06
  5. Step 5: Solve for x
    x = 87,507,411,093.06/314,601.52
  6. Step 6: Final answer
    x = 278,153.17

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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.