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Finding the Fourth Proportional to 1,922,978.76, 2,653,697.14 and 1,063,507.24

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Solution

The fourth proportional to 1,922,978.76, 2,653,697.14 and 1,063,507.24 is: 1,467,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922,978.76 : 2,653,697.14 = 1,063,507.24 : x
  2. Step 2: Convert to fraction form
    1,922,978.76/2,653,697.14 = 1,063,507.24/x
  3. Step 3: Cross multiply
    1,922,978.76x = 2,653,697.14 × 1,063,507.24
  4. Step 4: Simplify right side
    1,922,978.76x = 2,822,226,121,157.29
  5. Step 5: Solve for x
    x = 2,822,226,121,157.29/1,922,978.76
  6. Step 6: Final answer
    x = 1,467,632.50

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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.