Home / 919,234.26-1,378,851.80-288,197.28

Finding the Fourth Proportional to 919,234.26, 1,378,851.80 and 288,197.28

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Solution

The fourth proportional to 919,234.26, 1,378,851.80 and 288,197.28 is: 432,296.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,234.26 : 1,378,851.80 = 288,197.28 : x
  2. Step 2: Convert to fraction form
    919,234.26/1,378,851.80 = 288,197.28/x
  3. Step 3: Cross multiply
    919,234.26x = 1,378,851.80 × 288,197.28
  4. Step 4: Simplify right side
    919,234.26x = 397,381,336,842.12
  5. Step 5: Solve for x
    x = 397,381,336,842.12/919,234.26
  6. Step 6: Final answer
    x = 432,296.05

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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.