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Finding the Fourth Proportional to 662,957.30, 914,856.88 and 405,265.83

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Solution

The fourth proportional to 662,957.30, 914,856.88 and 405,265.83 is: 559,252.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,957.30 : 914,856.88 = 405,265.83 : x
  2. Step 2: Convert to fraction form
    662,957.30/914,856.88 = 405,265.83/x
  3. Step 3: Cross multiply
    662,957.30x = 914,856.88 × 405,265.83
  4. Step 4: Simplify right side
    662,957.30x = 370,760,232,804.41
  5. Step 5: Solve for x
    x = 370,760,232,804.41/662,957.30
  6. Step 6: Final answer
    x = 559,252.06

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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.