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Finding the Fourth Proportional to 969,352.80, 1,453,856.40 and 613,730.40

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Solution

The fourth proportional to 969,352.80, 1,453,856.40 and 613,730.40 is: 920,486.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,352.80 : 1,453,856.40 = 613,730.40 : x
  2. Step 2: Convert to fraction form
    969,352.80/1,453,856.40 = 613,730.40/x
  3. Step 3: Cross multiply
    969,352.80x = 1,453,856.40 × 613,730.40
  4. Step 4: Simplify right side
    969,352.80x = 892,275,869,914.56
  5. Step 5: Solve for x
    x = 892,275,869,914.56/969,352.80
  6. Step 6: Final answer
    x = 920,486.19

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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.