Home / 382,680.06-528,084-212,910.54

Finding the Fourth Proportional to 382,680.06, 528,084 and 212,910.54

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Solution

The fourth proportional to 382,680.06, 528,084 and 212,910.54 is: 293,808.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,680.06 : 528,084 = 212,910.54 : x
  2. Step 2: Convert to fraction form
    382,680.06/528,084 = 212,910.54/x
  3. Step 3: Cross multiply
    382,680.06x = 528,084 × 212,910.54
  4. Step 4: Simplify right side
    382,680.06x = 112,434,649,605.36
  5. Step 5: Solve for x
    x = 112,434,649,605.36/382,680.06
  6. Step 6: Final answer
    x = 293,808.49

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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.