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Finding the Fourth Proportional to 990,584.70, 1,485,877.05 and 848,867.10

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Solution

The fourth proportional to 990,584.70, 1,485,877.05 and 848,867.10 is: 1,273,300.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,584.70 : 1,485,877.05 = 848,867.10 : x
  2. Step 2: Convert to fraction form
    990,584.70/1,485,877.05 = 848,867.10/x
  3. Step 3: Cross multiply
    990,584.70x = 1,485,877.05 × 848,867.10
  4. Step 4: Simplify right side
    990,584.70x = 1,261,312,142,390.06
  5. Step 5: Solve for x
    x = 1,261,312,142,390.06/990,584.70
  6. Step 6: Final answer
    x = 1,273,300.65

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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.