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Finding the Fourth Proportional to 328,686.44, 453,578.06 and 185,459.81

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Solution

The fourth proportional to 328,686.44, 453,578.06 and 185,459.81 is: 255,929.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,686.44 : 453,578.06 = 185,459.81 : x
  2. Step 2: Convert to fraction form
    328,686.44/453,578.06 = 185,459.81/x
  3. Step 3: Cross multiply
    328,686.44x = 453,578.06 × 185,459.81
  4. Step 4: Simplify right side
    328,686.44x = 84,120,497,632.58
  5. Step 5: Solve for x
    x = 84,120,497,632.58/328,686.44
  6. Step 6: Final answer
    x = 255,929.33

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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.