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Finding the Fourth Proportional to 1,979,715.60, 2,969,573.40 and 1,755,329.40

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Solution

The fourth proportional to 1,979,715.60, 2,969,573.40 and 1,755,329.40 is: 2,632,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,715.60 : 2,969,573.40 = 1,755,329.40 : x
  2. Step 2: Convert to fraction form
    1,979,715.60/2,969,573.40 = 1,755,329.40/x
  3. Step 3: Cross multiply
    1,979,715.60x = 2,969,573.40 × 1,755,329.40
  4. Step 4: Simplify right side
    1,979,715.60x = 5,212,579,494,477.96
  5. Step 5: Solve for x
    x = 5,212,579,494,477.96/1,979,715.60
  6. Step 6: Final answer
    x = 2,632,994.10

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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.