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Finding the Fourth Proportional to 328,706.30, 453,614.70 and 177,803.30

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Solution

The fourth proportional to 328,706.30, 453,614.70 and 177,803.30 is: 245,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,706.30 : 453,614.70 = 177,803.30 : x
  2. Step 2: Convert to fraction form
    328,706.30/453,614.70 = 177,803.30/x
  3. Step 3: Cross multiply
    328,706.30x = 453,614.70 × 177,803.30
  4. Step 4: Simplify right side
    328,706.30x = 80,654,190,588.51
  5. Step 5: Solve for x
    x = 80,654,190,588.51/328,706.30
  6. Step 6: Final answer
    x = 245,368.56

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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.