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Finding the Fourth Proportional to 326,721.30, 456,476.70 and 326,721.30

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Solution

The fourth proportional to 326,721.30, 456,476.70 and 326,721.30 is: 456,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,721.30 : 456,476.70 = 326,721.30 : x
  2. Step 2: Convert to fraction form
    326,721.30/456,476.70 = 326,721.30/x
  3. Step 3: Cross multiply
    326,721.30x = 456,476.70 × 326,721.30
  4. Step 4: Simplify right side
    326,721.30x = 149,140,660,843.71
  5. Step 5: Solve for x
    x = 149,140,660,843.71/326,721.30
  6. Step 6: Final answer
    x = 456,476.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.