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Finding the Fourth Proportional to 7,233,966.76, 9,978,333.26 and 4,291,700.78

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Solution

The fourth proportional to 7,233,966.76, 9,978,333.26 and 4,291,700.78 is: 5,919,853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,233,966.76 : 9,978,333.26 = 4,291,700.78 : x
  2. Step 2: Convert to fraction form
    7,233,966.76/9,978,333.26 = 4,291,700.78/x
  3. Step 3: Cross multiply
    7,233,966.76x = 9,978,333.26 × 4,291,700.78
  4. Step 4: Simplify right side
    7,233,966.76x = 42,824,020,595,879.53
  5. Step 5: Solve for x
    x = 42,824,020,595,879.53/7,233,966.76
  6. Step 6: Final answer
    x = 5,919,853.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.