Home / 919,191.70-1,377,147.30-444,831.40

Finding the Fourth Proportional to 919,191.70, 1,377,147.30 and 444,831.40

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Solution

The fourth proportional to 919,191.70, 1,377,147.30 and 444,831.40 is: 666,453.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,191.70 : 1,377,147.30 = 444,831.40 : x
  2. Step 2: Convert to fraction form
    919,191.70/1,377,147.30 = 444,831.40/x
  3. Step 3: Cross multiply
    919,191.70x = 1,377,147.30 × 444,831.40
  4. Step 4: Simplify right side
    919,191.70x = 612,598,361,465.22
  5. Step 5: Solve for x
    x = 612,598,361,465.22/919,191.70
  6. Step 6: Final answer
    x = 666,453.32

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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.