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Finding the Fourth Proportional to 985,511.60, 1,475,502.60 and 957,863.60

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Solution

The fourth proportional to 985,511.60, 1,475,502.60 and 957,863.60 is: 1,434,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,511.60 : 1,475,502.60 = 957,863.60 : x
  2. Step 2: Convert to fraction form
    985,511.60/1,475,502.60 = 957,863.60/x
  3. Step 3: Cross multiply
    985,511.60x = 1,475,502.60 × 957,863.60
  4. Step 4: Simplify right side
    985,511.60x = 1,413,330,232,245.36
  5. Step 5: Solve for x
    x = 1,413,330,232,245.36/985,511.60
  6. Step 6: Final answer
    x = 1,434,108.16

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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.