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Finding the Fourth Proportional to 1,971,146.04, 2,720,181.51 and 1,065,728.04

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Solution

The fourth proportional to 1,971,146.04, 2,720,181.51 and 1,065,728.04 is: 1,470,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,146.04 : 2,720,181.51 = 1,065,728.04 : x
  2. Step 2: Convert to fraction form
    1,971,146.04/2,720,181.51 = 1,065,728.04/x
  3. Step 3: Cross multiply
    1,971,146.04x = 2,720,181.51 × 1,065,728.04
  4. Step 4: Simplify right side
    1,971,146.04x = 2,898,973,709,096.54
  5. Step 5: Solve for x
    x = 2,898,973,709,096.54/1,971,146.04
  6. Step 6: Final answer
    x = 1,470,704.68

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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.