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Finding the Fourth Proportional to 768,569.74, 1,052,935.63 and 739,828.31

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Solution

The fourth proportional to 768,569.74, 1,052,935.63 and 739,828.31 is: 1,013,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,569.74 : 1,052,935.63 = 739,828.31 : x
  2. Step 2: Convert to fraction form
    768,569.74/1,052,935.63 = 739,828.31/x
  3. Step 3: Cross multiply
    768,569.74x = 1,052,935.63 × 739,828.31
  4. Step 4: Simplify right side
    768,569.74x = 778,991,585,609.59
  5. Step 5: Solve for x
    x = 778,991,585,609.59/768,569.74
  6. Step 6: Final answer
    x = 1,013,560.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.