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Finding the Fourth Proportional to 1,971,737.22, 2,721,005.56 and 1,066,319.22

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Solution

The fourth proportional to 1,971,737.22, 2,721,005.56 and 1,066,319.22 is: 1,471,524.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,737.22 : 2,721,005.56 = 1,066,319.22 : x
  2. Step 2: Convert to fraction form
    1,971,737.22/2,721,005.56 = 1,066,319.22/x
  3. Step 3: Cross multiply
    1,971,737.22x = 2,721,005.56 × 1,066,319.22
  4. Step 4: Simplify right side
    1,971,737.22x = 2,901,460,526,354.86
  5. Step 5: Solve for x
    x = 2,901,460,526,354.86/1,971,737.22
  6. Step 6: Final answer
    x = 1,471,524.96

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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.