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Finding the Fourth Proportional to 1,997,951.60, 2,996,927.40 and 1,399,588.40

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Solution

The fourth proportional to 1,997,951.60, 2,996,927.40 and 1,399,588.40 is: 2,099,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,951.60 : 2,996,927.40 = 1,399,588.40 : x
  2. Step 2: Convert to fraction form
    1,997,951.60/2,996,927.40 = 1,399,588.40/x
  3. Step 3: Cross multiply
    1,997,951.60x = 2,996,927.40 × 1,399,588.40
  4. Step 4: Simplify right side
    1,997,951.60x = 4,194,464,824,682.16
  5. Step 5: Solve for x
    x = 4,194,464,824,682.16/1,997,951.60
  6. Step 6: Final answer
    x = 2,099,382.60

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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.