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Finding the Fourth Proportional to 2,134,487.00, 2,945,661.87 and 1,216,699.47

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Solution

The fourth proportional to 2,134,487.00, 2,945,661.87 and 1,216,699.47 is: 1,679,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134,487.00 : 2,945,661.87 = 1,216,699.47 : x
  2. Step 2: Convert to fraction form
    2,134,487.00/2,945,661.87 = 1,216,699.47/x
  3. Step 3: Cross multiply
    2,134,487.00x = 2,945,661.87 × 1,216,699.47
  4. Step 4: Simplify right side
    2,134,487.00x = 3,583,985,236,028.21
  5. Step 5: Solve for x
    x = 3,583,985,236,028.21/2,134,487.00
  6. Step 6: Final answer
    x = 1,679,085.07

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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.