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Finding the Fourth Proportional to 328,774.91, 453,683.54 and 201,433.19

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Solution

The fourth proportional to 328,774.91, 453,683.54 and 201,433.19 is: 277,961.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,774.91 : 453,683.54 = 201,433.19 : x
  2. Step 2: Convert to fraction form
    328,774.91/453,683.54 = 201,433.19/x
  3. Step 3: Cross multiply
    328,774.91x = 453,683.54 × 201,433.19
  4. Step 4: Simplify right side
    328,774.91x = 91,386,921,705.53
  5. Step 5: Solve for x
    x = 91,386,921,705.53/328,774.91
  6. Step 6: Final answer
    x = 277,961.97

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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.