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Finding the Fourth Proportional to 608,869.40, 913,361.70 and 165,637.40

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Solution

The fourth proportional to 608,869.40, 913,361.70 and 165,637.40 is: 248,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,869.40 : 913,361.70 = 165,637.40 : x
  2. Step 2: Convert to fraction form
    608,869.40/913,361.70 = 165,637.40/x
  3. Step 3: Cross multiply
    608,869.40x = 913,361.70 × 165,637.40
  4. Step 4: Simplify right side
    608,869.40x = 151,286,857,247.58
  5. Step 5: Solve for x
    x = 151,286,857,247.58/608,869.40
  6. Step 6: Final answer
    x = 248,471.77

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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.