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Finding the Fourth Proportional to 469,335.03, 647,642.30 and 265,375.95

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Solution

The fourth proportional to 469,335.03, 647,642.30 and 265,375.95 is: 366,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,335.03 : 647,642.30 = 265,375.95 : x
  2. Step 2: Convert to fraction form
    469,335.03/647,642.30 = 265,375.95/x
  3. Step 3: Cross multiply
    469,335.03x = 647,642.30 × 265,375.95
  4. Step 4: Simplify right side
    469,335.03x = 171,868,689,295.81
  5. Step 5: Solve for x
    x = 171,868,689,295.81/469,335.03
  6. Step 6: Final answer
    x = 366,196.17

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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.