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Finding the Fourth Proportional to 5,978,701.80, 8,969,364.90 and 1,934,501.40

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Solution

The fourth proportional to 5,978,701.80, 8,969,364.90 and 1,934,501.40 is: 2,902,176.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978,701.80 : 8,969,364.90 = 1,934,501.40 : x
  2. Step 2: Convert to fraction form
    5,978,701.80/8,969,364.90 = 1,934,501.40/x
  3. Step 3: Cross multiply
    5,978,701.80x = 8,969,364.90 × 1,934,501.40
  4. Step 4: Simplify right side
    5,978,701.80x = 17,351,248,956,160.86
  5. Step 5: Solve for x
    x = 17,351,248,956,160.86/5,978,701.80
  6. Step 6: Final answer
    x = 2,902,176.68

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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.