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Finding the Fourth Proportional to 3,778,717.58, 5,666,978.27 and 1,472,697.47

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Solution

The fourth proportional to 3,778,717.58, 5,666,978.27 and 1,472,697.47 is: 2,208,618.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778,717.58 : 5,666,978.27 = 1,472,697.47 : x
  2. Step 2: Convert to fraction form
    3,778,717.58/5,666,978.27 = 1,472,697.47/x
  3. Step 3: Cross multiply
    3,778,717.58x = 5,666,978.27 × 1,472,697.47
  4. Step 4: Simplify right side
    3,778,717.58x = 8,345,744,574,481.20
  5. Step 5: Solve for x
    x = 8,345,744,574,481.20/3,778,717.58
  6. Step 6: Final answer
    x = 2,208,618.24

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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.