Home / 698,764.54-964,289.27-392,842.29

Finding the Fourth Proportional to 698,764.54, 964,289.27 and 392,842.29

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Solution

The fourth proportional to 698,764.54, 964,289.27 and 392,842.29 is: 542,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,764.54 : 964,289.27 = 392,842.29 : x
  2. Step 2: Convert to fraction form
    698,764.54/964,289.27 = 392,842.29/x
  3. Step 3: Cross multiply
    698,764.54x = 964,289.27 × 392,842.29
  4. Step 4: Simplify right side
    698,764.54x = 378,813,605,049.23
  5. Step 5: Solve for x
    x = 378,813,605,049.23/698,764.54
  6. Step 6: Final answer
    x = 542,119.10

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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.