Home / 693,600.60-1,040,400.90-660,941.40

Finding the Fourth Proportional to 693,600.60, 1,040,400.90 and 660,941.40

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Solution

The fourth proportional to 693,600.60, 1,040,400.90 and 660,941.40 is: 991,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,600.60 : 1,040,400.90 = 660,941.40 : x
  2. Step 2: Convert to fraction form
    693,600.60/1,040,400.90 = 660,941.40/x
  3. Step 3: Cross multiply
    693,600.60x = 1,040,400.90 × 660,941.40
  4. Step 4: Simplify right side
    693,600.60x = 687,644,027,407.26
  5. Step 5: Solve for x
    x = 687,644,027,407.26/693,600.60
  6. Step 6: Final answer
    x = 991,412.10

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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.