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Finding the Fourth Proportional to 1,194,903.56, 1,788,143.34 and 745,835.24

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Solution

The fourth proportional to 1,194,903.56, 1,788,143.34 and 745,835.24 is: 1,116,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,903.56 : 1,788,143.34 = 745,835.24 : x
  2. Step 2: Convert to fraction form
    1,194,903.56/1,788,143.34 = 745,835.24/x
  3. Step 3: Cross multiply
    1,194,903.56x = 1,788,143.34 × 745,835.24
  4. Step 4: Simplify right side
    1,194,903.56x = 1,333,660,317,143.30
  5. Step 5: Solve for x
    x = 1,333,660,317,143.30/1,194,903.56
  6. Step 6: Final answer
    x = 1,116,123.81

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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.