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Finding the Fourth Proportional to 4,788,687.60, 7,183,031.40 and 4,396,777.20

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Solution

The fourth proportional to 4,788,687.60, 7,183,031.40 and 4,396,777.20 is: 6,595,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788,687.60 : 7,183,031.40 = 4,396,777.20 : x
  2. Step 2: Convert to fraction form
    4,788,687.60/7,183,031.40 = 4,396,777.20/x
  3. Step 3: Cross multiply
    4,788,687.60x = 7,183,031.40 × 4,396,777.20
  4. Step 4: Simplify right side
    4,788,687.60x = 31,582,188,686,404.08
  5. Step 5: Solve for x
    x = 31,582,188,686,404.08/4,788,687.60
  6. Step 6: Final answer
    x = 6,595,165.80

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1.5x scale

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.