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Finding the Fourth Proportional to 1,265,791.41, 1,746,808.55 and 692,819.28

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Solution

The fourth proportional to 1,265,791.41, 1,746,808.55 and 692,819.28 is: 956,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,791.41 : 1,746,808.55 = 692,819.28 : x
  2. Step 2: Convert to fraction form
    1,265,791.41/1,746,808.55 = 692,819.28/x
  3. Step 3: Cross multiply
    1,265,791.41x = 1,746,808.55 × 692,819.28
  4. Step 4: Simplify right side
    1,265,791.41x = 1,210,222,643,640.89
  5. Step 5: Solve for x
    x = 1,210,222,643,640.89/1,265,791.41
  6. Step 6: Final answer
    x = 956,099.59

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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.