Home / 628,597.36-867,435.78-342,116.56

Finding the Fourth Proportional to 628,597.36, 867,435.78 and 342,116.56

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Solution

The fourth proportional to 628,597.36, 867,435.78 and 342,116.56 is: 472,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,597.36 : 867,435.78 = 342,116.56 : x
  2. Step 2: Convert to fraction form
    628,597.36/867,435.78 = 342,116.56/x
  3. Step 3: Cross multiply
    628,597.36x = 867,435.78 × 342,116.56
  4. Step 4: Simplify right side
    628,597.36x = 296,764,145,074.52
  5. Step 5: Solve for x
    x = 296,764,145,074.52/628,597.36
  6. Step 6: Final answer
    x = 472,105.30

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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.