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Finding the Fourth Proportional to 743,322.70, 1,042,751.30 and 743,322.70

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Solution

The fourth proportional to 743,322.70, 1,042,751.30 and 743,322.70 is: 1,042,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,322.70 : 1,042,751.30 = 743,322.70 : x
  2. Step 2: Convert to fraction form
    743,322.70/1,042,751.30 = 743,322.70/x
  3. Step 3: Cross multiply
    743,322.70x = 1,042,751.30 × 743,322.70
  4. Step 4: Simplify right side
    743,322.70x = 775,100,711,744.51
  5. Step 5: Solve for x
    x = 775,100,711,744.51/743,322.70
  6. Step 6: Final answer
    x = 1,042,751.30

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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.