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Finding the Fourth Proportional to 1,750,921.70, 2,416,308.91 and 986,975.06

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Solution

The fourth proportional to 1,750,921.70, 2,416,308.91 and 986,975.06 is: 1,362,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750,921.70 : 2,416,308.91 = 986,975.06 : x
  2. Step 2: Convert to fraction form
    1,750,921.70/2,416,308.91 = 986,975.06/x
  3. Step 3: Cross multiply
    1,750,921.70x = 2,416,308.91 × 986,975.06
  4. Step 4: Simplify right side
    1,750,921.70x = 2,384,836,616,876.80
  5. Step 5: Solve for x
    x = 2,384,836,616,876.80/1,750,921.70
  6. Step 6: Final answer
    x = 1,362,046.41

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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.