Home / 856,845.60-1,285,268.40-436,941.60

Finding the Fourth Proportional to 856,845.60, 1,285,268.40 and 436,941.60

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Solution

The fourth proportional to 856,845.60, 1,285,268.40 and 436,941.60 is: 655,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,845.60 : 1,285,268.40 = 436,941.60 : x
  2. Step 2: Convert to fraction form
    856,845.60/1,285,268.40 = 436,941.60/x
  3. Step 3: Cross multiply
    856,845.60x = 1,285,268.40 × 436,941.60
  4. Step 4: Simplify right side
    856,845.60x = 561,587,231,125.44
  5. Step 5: Solve for x
    x = 561,587,231,125.44/856,845.60
  6. Step 6: Final answer
    x = 655,412.40

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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.