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Finding the Fourth Proportional to 328,889.40, 453,722.54 and 192,854.28

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Solution

The fourth proportional to 328,889.40, 453,722.54 and 192,854.28 is: 266,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,889.40 : 453,722.54 = 192,854.28 : x
  2. Step 2: Convert to fraction form
    328,889.40/453,722.54 = 192,854.28/x
  3. Step 3: Cross multiply
    328,889.40x = 453,722.54 × 192,854.28
  4. Step 4: Simplify right side
    328,889.40x = 87,502,333,771.47
  5. Step 5: Solve for x
    x = 87,502,333,771.47/328,889.40
  6. Step 6: Final answer
    x = 266,053.98

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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.