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Finding the Fourth Proportional to 912,937.63, 1,259,891.03 and 505,032.44

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Solution

The fourth proportional to 912,937.63, 1,259,891.03 and 505,032.44 is: 696,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,937.63 : 1,259,891.03 = 505,032.44 : x
  2. Step 2: Convert to fraction form
    912,937.63/1,259,891.03 = 505,032.44/x
  3. Step 3: Cross multiply
    912,937.63x = 1,259,891.03 × 505,032.44
  4. Step 4: Simplify right side
    912,937.63x = 636,285,832,190.40
  5. Step 5: Solve for x
    x = 636,285,832,190.40/912,937.63
  6. Step 6: Final answer
    x = 696,965.28

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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.