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Finding the Fourth Proportional to 5,244,866.40, 7,865,744.40 and 2,048,152.80

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Solution

The fourth proportional to 5,244,866.40, 7,865,744.40 and 2,048,152.80 is: 3,071,621.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244,866.40 : 7,865,744.40 = 2,048,152.80 : x
  2. Step 2: Convert to fraction form
    5,244,866.40/7,865,744.40 = 2,048,152.80/x
  3. Step 3: Cross multiply
    5,244,866.40x = 7,865,744.40 × 2,048,152.80
  4. Step 4: Simplify right side
    5,244,866.40x = 16,110,246,416,944.32
  5. Step 5: Solve for x
    x = 16,110,246,416,944.32/5,244,866.40
  6. Step 6: Final answer
    x = 3,071,621.88

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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.