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Finding the Fourth Proportional to 701,710.40, 1,051,010.40 and 543,425.60

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Solution

The fourth proportional to 701,710.40, 1,051,010.40 and 543,425.60 is: 813,934.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,710.40 : 1,051,010.40 = 543,425.60 : x
  2. Step 2: Convert to fraction form
    701,710.40/1,051,010.40 = 543,425.60/x
  3. Step 3: Cross multiply
    701,710.40x = 1,051,010.40 × 543,425.60
  4. Step 4: Simplify right side
    701,710.40x = 571,145,957,226.24
  5. Step 5: Solve for x
    x = 571,145,957,226.24/701,710.40
  6. Step 6: Final answer
    x = 813,934.01

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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.