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Finding the Fourth Proportional to 922,164.60, 1,383,246.90 and 621,014.70

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Solution

The fourth proportional to 922,164.60, 1,383,246.90 and 621,014.70 is: 931,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,164.60 : 1,383,246.90 = 621,014.70 : x
  2. Step 2: Convert to fraction form
    922,164.60/1,383,246.90 = 621,014.70/x
  3. Step 3: Cross multiply
    922,164.60x = 1,383,246.90 × 621,014.70
  4. Step 4: Simplify right side
    922,164.60x = 859,016,658,629.43
  5. Step 5: Solve for x
    x = 859,016,658,629.43/922,164.60
  6. Step 6: Final answer
    x = 931,522.05

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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.