Home / 628,664.66-867,533.12-356,716.34

Finding the Fourth Proportional to 628,664.66, 867,533.12 and 356,716.34

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Solution

The fourth proportional to 628,664.66, 867,533.12 and 356,716.34 is: 492,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,664.66 : 867,533.12 = 356,716.34 : x
  2. Step 2: Convert to fraction form
    628,664.66/867,533.12 = 356,716.34/x
  3. Step 3: Cross multiply
    628,664.66x = 867,533.12 × 356,716.34
  4. Step 4: Simplify right side
    628,664.66x = 309,463,239,202.56
  5. Step 5: Solve for x
    x = 309,463,239,202.56/628,664.66
  6. Step 6: Final answer
    x = 492,254.87

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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.