Home / 628,569.52-867,517.36-352,958.32

Finding the Fourth Proportional to 628,569.52, 867,517.36 and 352,958.32

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Solution

The fourth proportional to 628,569.52, 867,517.36 and 352,958.32 is: 487,133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,569.52 : 867,517.36 = 352,958.32 : x
  2. Step 2: Convert to fraction form
    628,569.52/867,517.36 = 352,958.32/x
  3. Step 3: Cross multiply
    628,569.52x = 867,517.36 × 352,958.32
  4. Step 4: Simplify right side
    628,569.52x = 306,197,465,278.65
  5. Step 5: Solve for x
    x = 306,197,465,278.65/628,569.52
  6. Step 6: Final answer
    x = 487,133.81

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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.