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Finding the Fourth Proportional to 881,894.26, 1,216,978.82 and 519,333.40

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Solution

The fourth proportional to 881,894.26, 1,216,978.82 and 519,333.40 is: 716,659.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,894.26 : 1,216,978.82 = 519,333.40 : x
  2. Step 2: Convert to fraction form
    881,894.26/1,216,978.82 = 519,333.40/x
  3. Step 3: Cross multiply
    881,894.26x = 1,216,978.82 × 519,333.40
  4. Step 4: Simplify right side
    881,894.26x = 632,017,748,318.59
  5. Step 5: Solve for x
    x = 632,017,748,318.59/881,894.26
  6. Step 6: Final answer
    x = 716,659.33

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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.