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Finding the Fourth Proportional to 1,346,574, 1,858,311 and 743,000.88

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Solution

The fourth proportional to 1,346,574, 1,858,311 and 743,000.88 is: 1,025,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,574 : 1,858,311 = 743,000.88 : x
  2. Step 2: Convert to fraction form
    1,346,574/1,858,311 = 743,000.88/x
  3. Step 3: Cross multiply
    1,346,574x = 1,858,311 × 743,000.88
  4. Step 4: Simplify right side
    1,346,574x = 1,380,726,708,313.68
  5. Step 5: Solve for x
    x = 1,380,726,708,313.68/1,346,574
  6. Step 6: Final answer
    x = 1,025,362.67

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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.