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Finding the Fourth Proportional to 653,222,687.20, 978,826,261.20 and 566,554,501.60

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Solution

The fourth proportional to 653,222,687.20, 978,826,261.20 and 566,554,501.60 is: 848,957,691.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,222,687.20 : 978,826,261.20 = 566,554,501.60 : x
  2. Step 2: Convert to fraction form
    653,222,687.20/978,826,261.20 = 566,554,501.60/x
  3. Step 3: Cross multiply
    653,222,687.20x = 978,826,261.20 × 566,554,501.60
  4. Step 4: Simplify right side
    653,222,687.20x = 554,558,424,567,157,440
  5. Step 5: Solve for x
    x = 554,558,424,567,157,440/653,222,687.20
  6. Step 6: Final answer
    x = 848,957,691.51

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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.