Home / 631,097.87-945,945.59-480,842.78

Finding the Fourth Proportional to 631,097.87, 945,945.59 and 480,842.78

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Solution

The fourth proportional to 631,097.87, 945,945.59 and 480,842.78 is: 720,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,097.87 : 945,945.59 = 480,842.78 : x
  2. Step 2: Convert to fraction form
    631,097.87/945,945.59 = 480,842.78/x
  3. Step 3: Cross multiply
    631,097.87x = 945,945.59 × 480,842.78
  4. Step 4: Simplify right side
    631,097.87x = 454,851,100,090.40
  5. Step 5: Solve for x
    x = 454,851,100,090.40/631,097.87
  6. Step 6: Final answer
    x = 720,729.90

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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.