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Finding the Fourth Proportional to 5,341,805.70, 8,012,708.55 and 4,809,927.30

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Solution

The fourth proportional to 5,341,805.70, 8,012,708.55 and 4,809,927.30 is: 7,214,890.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,341,805.70 : 8,012,708.55 = 4,809,927.30 : x
  2. Step 2: Convert to fraction form
    5,341,805.70/8,012,708.55 = 4,809,927.30/x
  3. Step 3: Cross multiply
    5,341,805.70x = 8,012,708.55 × 4,809,927.30
  4. Step 4: Simplify right side
    5,341,805.70x = 38,540,545,601,588.41
  5. Step 5: Solve for x
    x = 38,540,545,601,588.41/5,341,805.70
  6. Step 6: Final answer
    x = 7,214,890.95

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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.