Home / 1,991,025.60-2,986,538.40-571,225.20

Finding the Fourth Proportional to 1,991,025.60, 2,986,538.40 and 571,225.20

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Solution

The fourth proportional to 1,991,025.60, 2,986,538.40 and 571,225.20 is: 856,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,025.60 : 2,986,538.40 = 571,225.20 : x
  2. Step 2: Convert to fraction form
    1,991,025.60/2,986,538.40 = 571,225.20/x
  3. Step 3: Cross multiply
    1,991,025.60x = 2,986,538.40 × 571,225.20
  4. Step 4: Simplify right side
    1,991,025.60x = 1,705,985,994,847.68
  5. Step 5: Solve for x
    x = 1,705,985,994,847.68/1,991,025.60
  6. Step 6: Final answer
    x = 856,837.80

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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.