Home / 554,185.48-764,819.28-309,247.25

Finding the Fourth Proportional to 554,185.48, 764,819.28 and 309,247.25

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Solution

The fourth proportional to 554,185.48, 764,819.28 and 309,247.25 is: 426,785.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,185.48 : 764,819.28 = 309,247.25 : x
  2. Step 2: Convert to fraction form
    554,185.48/764,819.28 = 309,247.25/x
  3. Step 3: Cross multiply
    554,185.48x = 764,819.28 × 309,247.25
  4. Step 4: Simplify right side
    554,185.48x = 236,518,259,086.98
  5. Step 5: Solve for x
    x = 236,518,259,086.98/554,185.48
  6. Step 6: Final answer
    x = 426,785.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.