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Finding the Fourth Proportional to 328,878.66, 453,853.90 and 177,975.66

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Solution

The fourth proportional to 328,878.66, 453,853.90 and 177,975.66 is: 245,607.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,878.66 : 453,853.90 = 177,975.66 : x
  2. Step 2: Convert to fraction form
    328,878.66/453,853.90 = 177,975.66/x
  3. Step 3: Cross multiply
    328,878.66x = 453,853.90 × 177,975.66
  4. Step 4: Simplify right side
    328,878.66x = 80,774,949,320.50
  5. Step 5: Solve for x
    x = 80,774,949,320.50/328,878.66
  6. Step 6: Final answer
    x = 245,607.14

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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.