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Finding the Fourth Proportional to 1,667,986.14, 2,501,079.91 and 899,895.54

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Solution

The fourth proportional to 1,667,986.14, 2,501,079.91 and 899,895.54 is: 1,349,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667,986.14 : 2,501,079.91 = 899,895.54 : x
  2. Step 2: Convert to fraction form
    1,667,986.14/2,501,079.91 = 899,895.54/x
  3. Step 3: Cross multiply
    1,667,986.14x = 2,501,079.91 × 899,895.54
  4. Step 4: Simplify right side
    1,667,986.14x = 2,250,710,653,942.86
  5. Step 5: Solve for x
    x = 2,250,710,653,942.86/1,667,986.14
  6. Step 6: Final answer
    x = 1,349,358.13

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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.