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Finding the Fourth Proportional to 1,956,813.92, 2,700,530.94 and 1,129,922.38

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Solution

The fourth proportional to 1,956,813.92, 2,700,530.94 and 1,129,922.38 is: 1,559,366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956,813.92 : 2,700,530.94 = 1,129,922.38 : x
  2. Step 2: Convert to fraction form
    1,956,813.92/2,700,530.94 = 1,129,922.38/x
  3. Step 3: Cross multiply
    1,956,813.92x = 2,700,530.94 × 1,129,922.38
  4. Step 4: Simplify right side
    1,956,813.92x = 3,051,390,346,988.44
  5. Step 5: Solve for x
    x = 3,051,390,346,988.44/1,956,813.92
  6. Step 6: Final answer
    x = 1,559,366.64

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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.