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Finding the Fourth Proportional to 5,892,934.80, 8,839,402.20 and 5,640,992.40

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Solution

The fourth proportional to 5,892,934.80, 8,839,402.20 and 5,640,992.40 is: 8,461,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,892,934.80 : 8,839,402.20 = 5,640,992.40 : x
  2. Step 2: Convert to fraction form
    5,892,934.80/8,839,402.20 = 5,640,992.40/x
  3. Step 3: Cross multiply
    5,892,934.80x = 8,839,402.20 × 5,640,992.40
  4. Step 4: Simplify right side
    5,892,934.80x = 49,863,000,630,743.28
  5. Step 5: Solve for x
    x = 49,863,000,630,743.28/5,892,934.80
  6. Step 6: Final answer
    x = 8,461,488.60

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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.