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Finding the Fourth Proportional to 328,489.16, 453,314.08 and 185,248.16

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Solution

The fourth proportional to 328,489.16, 453,314.08 and 185,248.16 is: 255,641.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,489.16 : 453,314.08 = 185,248.16 : x
  2. Step 2: Convert to fraction form
    328,489.16/453,314.08 = 185,248.16/x
  3. Step 3: Cross multiply
    328,489.16x = 453,314.08 × 185,248.16
  4. Step 4: Simplify right side
    328,489.16x = 83,975,599,222.09
  5. Step 5: Solve for x
    x = 83,975,599,222.09/328,489.16
  6. Step 6: Final answer
    x = 255,641.92

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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.