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Finding the Fourth Proportional to 328,672, 453,567.41 and 177,769

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Solution

The fourth proportional to 328,672, 453,567.41 and 177,769 is: 245,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,672 : 453,567.41 = 177,769 : x
  2. Step 2: Convert to fraction form
    328,672/453,567.41 = 177,769/x
  3. Step 3: Cross multiply
    328,672x = 453,567.41 × 177,769
  4. Step 4: Simplify right side
    328,672x = 80,630,224,908.29
  5. Step 5: Solve for x
    x = 80,630,224,908.29/328,672
  6. Step 6: Final answer
    x = 245,321.25

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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.