Home / 931,874.40-1,397,811.60-613,009.80

Finding the Fourth Proportional to 931,874.40, 1,397,811.60 and 613,009.80

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Solution

The fourth proportional to 931,874.40, 1,397,811.60 and 613,009.80 is: 919,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,874.40 : 1,397,811.60 = 613,009.80 : x
  2. Step 2: Convert to fraction form
    931,874.40/1,397,811.60 = 613,009.80/x
  3. Step 3: Cross multiply
    931,874.40x = 1,397,811.60 × 613,009.80
  4. Step 4: Simplify right side
    931,874.40x = 856,872,209,353.68
  5. Step 5: Solve for x
    x = 856,872,209,353.68/931,874.40
  6. Step 6: Final answer
    x = 919,514.70

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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.