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Finding the Fourth Proportional to 922,969.20, 1,384,453.80 and 605,708.40

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Solution

The fourth proportional to 922,969.20, 1,384,453.80 and 605,708.40 is: 908,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,969.20 : 1,384,453.80 = 605,708.40 : x
  2. Step 2: Convert to fraction form
    922,969.20/1,384,453.80 = 605,708.40/x
  3. Step 3: Cross multiply
    922,969.20x = 1,384,453.80 × 605,708.40
  4. Step 4: Simplify right side
    922,969.20x = 838,575,296,071.92
  5. Step 5: Solve for x
    x = 838,575,296,071.92/922,969.20
  6. Step 6: Final answer
    x = 908,562.60

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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.