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Finding the Fourth Proportional to 875,729.60, 1,310,829.60 and 848,081.60

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Solution

The fourth proportional to 875,729.60, 1,310,829.60 and 848,081.60 is: 1,269,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,729.60 : 1,310,829.60 = 848,081.60 : x
  2. Step 2: Convert to fraction form
    875,729.60/1,310,829.60 = 848,081.60/x
  3. Step 3: Cross multiply
    875,729.60x = 1,310,829.60 × 848,081.60
  4. Step 4: Simplify right side
    875,729.60x = 1,111,690,464,495.36
  5. Step 5: Solve for x
    x = 1,111,690,464,495.36/875,729.60
  6. Step 6: Final answer
    x = 1,269,444.89

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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.