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Finding the Fourth Proportional to 328,663.71, 453,555.95 and 177,760.71

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Solution

The fourth proportional to 328,663.71, 453,555.95 and 177,760.71 is: 245,309.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,663.71 : 453,555.95 = 177,760.71 : x
  2. Step 2: Convert to fraction form
    328,663.71/453,555.95 = 177,760.71/x
  3. Step 3: Cross multiply
    328,663.71x = 453,555.95 × 177,760.71
  4. Step 4: Simplify right side
    328,663.71x = 80,624,426,807.92
  5. Step 5: Solve for x
    x = 80,624,426,807.92/328,663.71
  6. Step 6: Final answer
    x = 245,309.79

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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.