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Finding the Fourth Proportional to 922,752.40, 1,384,128.60 and 834,178.90

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Solution

The fourth proportional to 922,752.40, 1,384,128.60 and 834,178.90 is: 1,251,268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,752.40 : 1,384,128.60 = 834,178.90 : x
  2. Step 2: Convert to fraction form
    922,752.40/1,384,128.60 = 834,178.90/x
  3. Step 3: Cross multiply
    922,752.40x = 1,384,128.60 × 834,178.90
  4. Step 4: Simplify right side
    922,752.40x = 1,154,610,873,006.54
  5. Step 5: Solve for x
    x = 1,154,610,873,006.54/922,752.40
  6. Step 6: Final answer
    x = 1,251,268.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.