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Finding the Fourth Proportional to 922,509.60, 1,384,347.60 and 543,429.60

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Solution

The fourth proportional to 922,509.60, 1,384,347.60 and 543,429.60 is: 815,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,509.60 : 1,384,347.60 = 543,429.60 : x
  2. Step 2: Convert to fraction form
    922,509.60/1,384,347.60 = 543,429.60/x
  3. Step 3: Cross multiply
    922,509.60x = 1,384,347.60 × 543,429.60
  4. Step 4: Simplify right side
    922,509.60x = 752,295,462,528.96
  5. Step 5: Solve for x
    x = 752,295,462,528.96/922,509.60
  6. Step 6: Final answer
    x = 815,487.95

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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.