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Finding the Fourth Proportional to 328,547.56, 453,395.78 and 177,644.56

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Solution

The fourth proportional to 328,547.56, 453,395.78 and 177,644.56 is: 245,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,547.56 : 453,395.78 = 177,644.56 : x
  2. Step 2: Convert to fraction form
    328,547.56/453,395.78 = 177,644.56/x
  3. Step 3: Cross multiply
    328,547.56x = 453,395.78 × 177,644.56
  4. Step 4: Simplify right side
    328,547.56x = 80,543,293,843.96
  5. Step 5: Solve for x
    x = 80,543,293,843.96/328,547.56
  6. Step 6: Final answer
    x = 245,149.57

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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.