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Finding the Fourth Proportional to 328,647.32, 453,533.30 and 177,744.32

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Solution

The fourth proportional to 328,647.32, 453,533.30 and 177,744.32 is: 245,287.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,647.32 : 453,533.30 = 177,744.32 : x
  2. Step 2: Convert to fraction form
    328,647.32/453,533.30 = 177,744.32/x
  3. Step 3: Cross multiply
    328,647.32x = 453,533.30 × 177,744.32
  4. Step 4: Simplify right side
    328,647.32x = 80,612,968,005.86
  5. Step 5: Solve for x
    x = 80,612,968,005.86/328,647.32
  6. Step 6: Final answer
    x = 245,287.16

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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.