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Finding the Fourth Proportional to 328,886.40, 453,718.40 and 192,851.28

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Solution

The fourth proportional to 328,886.40, 453,718.40 and 192,851.28 is: 266,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,886.40 : 453,718.40 = 192,851.28 : x
  2. Step 2: Convert to fraction form
    328,886.40/453,718.40 = 192,851.28/x
  3. Step 3: Cross multiply
    328,886.40x = 453,718.40 × 192,851.28
  4. Step 4: Simplify right side
    328,886.40x = 87,500,174,199.55
  5. Step 5: Solve for x
    x = 87,500,174,199.55/328,886.40
  6. Step 6: Final answer
    x = 266,049.84

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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.