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Finding the Fourth Proportional to 1,294,663.85, 1,787,402.12 and 1,151,026.95

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Solution

The fourth proportional to 1,294,663.85, 1,787,402.12 and 1,151,026.95 is: 1,589,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,663.85 : 1,787,402.12 = 1,151,026.95 : x
  2. Step 2: Convert to fraction form
    1,294,663.85/1,787,402.12 = 1,151,026.95/x
  3. Step 3: Cross multiply
    1,294,663.85x = 1,787,402.12 × 1,151,026.95
  4. Step 4: Simplify right side
    1,294,663.85x = 2,057,348,004,852.00
  5. Step 5: Solve for x
    x = 2,057,348,004,852.00/1,294,663.85
  6. Step 6: Final answer
    x = 1,589,098.21

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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.