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Finding the Fourth Proportional to 978,483.33, 1,350,375.57 and 543,043.17

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Solution

The fourth proportional to 978,483.33, 1,350,375.57 and 543,043.17 is: 749,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,483.33 : 1,350,375.57 = 543,043.17 : x
  2. Step 2: Convert to fraction form
    978,483.33/1,350,375.57 = 543,043.17/x
  3. Step 3: Cross multiply
    978,483.33x = 1,350,375.57 × 543,043.17
  4. Step 4: Simplify right side
    978,483.33x = 733,312,230,223.36
  5. Step 5: Solve for x
    x = 733,312,230,223.36/978,483.33
  6. Step 6: Final answer
    x = 749,437.63

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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.