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Finding the Fourth Proportional to 5,480,618.70, 7,685,463.30 and 5,480,618.70

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Solution

The fourth proportional to 5,480,618.70, 7,685,463.30 and 5,480,618.70 is: 7,685,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480,618.70 : 7,685,463.30 = 5,480,618.70 : x
  2. Step 2: Convert to fraction form
    5,480,618.70/7,685,463.30 = 5,480,618.70/x
  3. Step 3: Cross multiply
    5,480,618.70x = 7,685,463.30 × 5,480,618.70
  4. Step 4: Simplify right side
    5,480,618.70x = 42,121,093,880,143.71
  5. Step 5: Solve for x
    x = 42,121,093,880,143.71/5,480,618.70
  6. Step 6: Final answer
    x = 7,685,463.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.