Home / 382,681.06-528,085.38-212,911.54

Finding the Fourth Proportional to 382,681.06, 528,085.38 and 212,911.54

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Solution

The fourth proportional to 382,681.06, 528,085.38 and 212,911.54 is: 293,809.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,681.06 : 528,085.38 = 212,911.54 : x
  2. Step 2: Convert to fraction form
    382,681.06/528,085.38 = 212,911.54/x
  3. Step 3: Cross multiply
    382,681.06x = 528,085.38 × 212,911.54
  4. Step 4: Simplify right side
    382,681.06x = 112,435,471,507.29
  5. Step 5: Solve for x
    x = 112,435,471,507.29/382,681.06
  6. Step 6: Final answer
    x = 293,809.87

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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.