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Finding the Fourth Proportional to 1,346,120, 1,857,776.82 and 742,508

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Solution

The fourth proportional to 1,346,120, 1,857,776.82 and 742,508 is: 1,024,733.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,120 : 1,857,776.82 = 742,508 : x
  2. Step 2: Convert to fraction form
    1,346,120/1,857,776.82 = 742,508/x
  3. Step 3: Cross multiply
    1,346,120x = 1,857,776.82 × 742,508
  4. Step 4: Simplify right side
    1,346,120x = 1,379,414,151,064.56
  5. Step 5: Solve for x
    x = 1,379,414,151,064.56/1,346,120
  6. Step 6: Final answer
    x = 1,024,733.42

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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.