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Finding the Fourth Proportional to 328,511.97, 453,340.53 and 185,272.11

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Solution

The fourth proportional to 328,511.97, 453,340.53 and 185,272.11 is: 255,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,511.97 : 453,340.53 = 185,272.11 : x
  2. Step 2: Convert to fraction form
    328,511.97/453,340.53 = 185,272.11/x
  3. Step 3: Cross multiply
    328,511.97x = 453,340.53 × 185,272.11
  4. Step 4: Simplify right side
    328,511.97x = 83,991,356,541.62
  5. Step 5: Solve for x
    x = 83,991,356,541.62/328,511.97
  6. Step 6: Final answer
    x = 255,672.13

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1.5x scale

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.