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Finding the Fourth Proportional to 328,726.50, 453,642.96 and 177,823.50

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Solution

The fourth proportional to 328,726.50, 453,642.96 and 177,823.50 is: 245,396.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,726.50 : 453,642.96 = 177,823.50 : x
  2. Step 2: Convert to fraction form
    328,726.50/453,642.96 = 177,823.50/x
  3. Step 3: Cross multiply
    328,726.50x = 453,642.96 × 177,823.50
  4. Step 4: Simplify right side
    328,726.50x = 80,668,378,897.56
  5. Step 5: Solve for x
    x = 80,668,378,897.56/328,726.50
  6. Step 6: Final answer
    x = 245,396.64

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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.