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Finding the Fourth Proportional to 1,254,779.62, 1,731,606.83 and 681,819.77

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Solution

The fourth proportional to 1,254,779.62, 1,731,606.83 and 681,819.77 is: 940,917.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,779.62 : 1,731,606.83 = 681,819.77 : x
  2. Step 2: Convert to fraction form
    1,254,779.62/1,731,606.83 = 681,819.77/x
  3. Step 3: Cross multiply
    1,254,779.62x = 1,731,606.83 × 681,819.77
  4. Step 4: Simplify right side
    1,254,779.62x = 1,180,643,767,151.93
  5. Step 5: Solve for x
    x = 1,180,643,767,151.93/1,254,779.62
  6. Step 6: Final answer
    x = 940,917.24

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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.