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Finding the Fourth Proportional to 627,449.92, 865,886.38 and 340,970.01

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Solution

The fourth proportional to 627,449.92, 865,886.38 and 340,970.01 is: 470,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,449.92 : 865,886.38 = 340,970.01 : x
  2. Step 2: Convert to fraction form
    627,449.92/865,886.38 = 340,970.01/x
  3. Step 3: Cross multiply
    627,449.92x = 865,886.38 × 340,970.01
  4. Step 4: Simplify right side
    627,449.92x = 295,241,284,506.94
  5. Step 5: Solve for x
    x = 295,241,284,506.94/627,449.92
  6. Step 6: Final answer
    x = 470,541.59

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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.