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Finding the Fourth Proportional to 2,094,776.86, 2,890,795.50 and 1,189,358.86

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Solution

The fourth proportional to 2,094,776.86, 2,890,795.50 and 1,189,358.86 is: 1,641,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,094,776.86 : 2,890,795.50 = 1,189,358.86 : x
  2. Step 2: Convert to fraction form
    2,094,776.86/2,890,795.50 = 1,189,358.86/x
  3. Step 3: Cross multiply
    2,094,776.86x = 2,890,795.50 × 1,189,358.86
  4. Step 4: Simplify right side
    2,094,776.86x = 3,438,193,240,373.13
  5. Step 5: Solve for x
    x = 3,438,193,240,373.13/2,094,776.86
  6. Step 6: Final answer
    x = 1,641,317.18

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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.