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Finding the Fourth Proportional to 4,893,687.86, 7,340,605.61 and 1,698,915.53

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Solution

The fourth proportional to 4,893,687.86, 7,340,605.61 and 1,698,915.53 is: 2,548,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893,687.86 : 7,340,605.61 = 1,698,915.53 : x
  2. Step 2: Convert to fraction form
    4,893,687.86/7,340,605.61 = 1,698,915.53/x
  3. Step 3: Cross multiply
    4,893,687.86x = 7,340,605.61 × 1,698,915.53
  4. Step 4: Simplify right side
    4,893,687.86x = 12,471,068,880,291.06
  5. Step 5: Solve for x
    x = 12,471,068,880,291.06/4,893,687.86
  6. Step 6: Final answer
    x = 2,548,398.93

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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.