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Finding the Fourth Proportional to 2,039,868.70, 3,059,803.05 and 976,986.70

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Solution

The fourth proportional to 2,039,868.70, 3,059,803.05 and 976,986.70 is: 1,465,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039,868.70 : 3,059,803.05 = 976,986.70 : x
  2. Step 2: Convert to fraction form
    2,039,868.70/3,059,803.05 = 976,986.70/x
  3. Step 3: Cross multiply
    2,039,868.70x = 3,059,803.05 × 976,986.70
  4. Step 4: Simplify right side
    2,039,868.70x = 2,989,386,884,469.43
  5. Step 5: Solve for x
    x = 2,989,386,884,469.43/2,039,868.70
  6. Step 6: Final answer
    x = 1,465,480.05

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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.