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Finding the Fourth Proportional to 777,616.60, 1,164,456.60 and 620,152.60

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Solution

The fourth proportional to 777,616.60, 1,164,456.60 and 620,152.60 is: 928,659.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,616.60 : 1,164,456.60 = 620,152.60 : x
  2. Step 2: Convert to fraction form
    777,616.60/1,164,456.60 = 620,152.60/x
  3. Step 3: Cross multiply
    777,616.60x = 1,164,456.60 × 620,152.60
  4. Step 4: Simplify right side
    777,616.60x = 722,140,788,077.16
  5. Step 5: Solve for x
    x = 722,140,788,077.16/777,616.60
  6. Step 6: Final answer
    x = 928,659.17

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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.