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Finding the Fourth Proportional to 328,740.08, 453,661.08 and 177,837.20

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Solution

The fourth proportional to 328,740.08, 453,661.08 and 177,837.20 is: 245,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,740.08 : 453,661.08 = 177,837.20 : x
  2. Step 2: Convert to fraction form
    328,740.08/453,661.08 = 177,837.20/x
  3. Step 3: Cross multiply
    328,740.08x = 453,661.08 × 177,837.20
  4. Step 4: Simplify right side
    328,740.08x = 80,677,816,216.18
  5. Step 5: Solve for x
    x = 80,677,816,216.18/328,740.08
  6. Step 6: Final answer
    x = 245,415.21

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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.