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Finding the Fourth Proportional to 878,265.88, 1,211,539.38 and 534,207

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Solution

The fourth proportional to 878,265.88, 1,211,539.38 and 534,207 is: 736,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,265.88 : 1,211,539.38 = 534,207 : x
  2. Step 2: Convert to fraction form
    878,265.88/1,211,539.38 = 534,207/x
  3. Step 3: Cross multiply
    878,265.88x = 1,211,539.38 × 534,207
  4. Step 4: Simplify right side
    878,265.88x = 647,212,817,571.66
  5. Step 5: Solve for x
    x = 647,212,817,571.66/878,265.88
  6. Step 6: Final answer
    x = 736,921.28

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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.