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Finding the Fourth Proportional to 1,971,143.03, 2,720,177.37 and 1,065,725.03

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Solution

The fourth proportional to 1,971,143.03, 2,720,177.37 and 1,065,725.03 is: 1,470,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,143.03 : 2,720,177.37 = 1,065,725.03 : x
  2. Step 2: Convert to fraction form
    1,971,143.03/2,720,177.37 = 1,065,725.03/x
  3. Step 3: Cross multiply
    1,971,143.03x = 2,720,177.37 × 1,065,725.03
  4. Step 4: Simplify right side
    1,971,143.03x = 2,898,961,116,049.01
  5. Step 5: Solve for x
    x = 2,898,961,116,049.01/1,971,143.03
  6. Step 6: Final answer
    x = 1,470,700.54

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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.