Home / 513,974.12-770,721.26-193,879.35

Finding the Fourth Proportional to 513,974.12, 770,721.26 and 193,879.35

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Solution

The fourth proportional to 513,974.12, 770,721.26 and 193,879.35 is: 290,728.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,974.12 : 770,721.26 = 193,879.35 : x
  2. Step 2: Convert to fraction form
    513,974.12/770,721.26 = 193,879.35/x
  3. Step 3: Cross multiply
    513,974.12x = 770,721.26 × 193,879.35
  4. Step 4: Simplify right side
    513,974.12x = 149,426,935,950.58
  5. Step 5: Solve for x
    x = 149,426,935,950.58/513,974.12
  6. Step 6: Final answer
    x = 290,728.52

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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.