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Finding the Fourth Proportional to 328,571.61, 453,428.51 and 177,668.25

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Solution

The fourth proportional to 328,571.61, 453,428.51 and 177,668.25 is: 245,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,571.61 : 453,428.51 = 177,668.25 : x
  2. Step 2: Convert to fraction form
    328,571.61/453,428.51 = 177,668.25/x
  3. Step 3: Cross multiply
    328,571.61x = 453,428.51 × 177,668.25
  4. Step 4: Simplify right side
    328,571.61x = 80,559,848,983.47
  5. Step 5: Solve for x
    x = 80,559,848,983.47/328,571.61
  6. Step 6: Final answer
    x = 245,182.01

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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.