Home / 1,991,009.60-2,986,514.40-570,939.20

Finding the Fourth Proportional to 1,991,009.60, 2,986,514.40 and 570,939.20

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Solution

The fourth proportional to 1,991,009.60, 2,986,514.40 and 570,939.20 is: 856,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,009.60 : 2,986,514.40 = 570,939.20 : x
  2. Step 2: Convert to fraction form
    1,991,009.60/2,986,514.40 = 570,939.20/x
  3. Step 3: Cross multiply
    1,991,009.60x = 2,986,514.40 × 570,939.20
  4. Step 4: Simplify right side
    1,991,009.60x = 1,705,118,142,324.48
  5. Step 5: Solve for x
    x = 1,705,118,142,324.48/1,991,009.60
  6. Step 6: Final answer
    x = 856,408.80

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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.