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Finding the Fourth Proportional to 814,784.10, 1,143,059.70 and 814,784.10

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Solution

The fourth proportional to 814,784.10, 1,143,059.70 and 814,784.10 is: 1,143,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,784.10 : 1,143,059.70 = 814,784.10 : x
  2. Step 2: Convert to fraction form
    814,784.10/1,143,059.70 = 814,784.10/x
  3. Step 3: Cross multiply
    814,784.10x = 1,143,059.70 × 814,784.10
  4. Step 4: Simplify right side
    814,784.10x = 931,346,868,910.77
  5. Step 5: Solve for x
    x = 931,346,868,910.77/814,784.10
  6. Step 6: Final answer
    x = 1,143,059.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.