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Finding the Fourth Proportional to 328,528.11, 453,368.16 and 185,287.71

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Solution

The fourth proportional to 328,528.11, 453,368.16 and 185,287.71 is: 255,696.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,528.11 : 453,368.16 = 185,287.71 : x
  2. Step 2: Convert to fraction form
    328,528.11/453,368.16 = 185,287.71/x
  3. Step 3: Cross multiply
    328,528.11x = 453,368.16 × 185,287.71
  4. Step 4: Simplify right side
    328,528.11x = 84,003,548,153.31
  5. Step 5: Solve for x
    x = 84,003,548,153.31/328,528.11
  6. Step 6: Final answer
    x = 255,696.68

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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.