Home / 382,972.38-528,497.43-210,886.76

Finding the Fourth Proportional to 382,972.38, 528,497.43 and 210,886.76

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Solution

The fourth proportional to 382,972.38, 528,497.43 and 210,886.76 is: 291,021.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,972.38 : 528,497.43 = 210,886.76 : x
  2. Step 2: Convert to fraction form
    382,972.38/528,497.43 = 210,886.76/x
  3. Step 3: Cross multiply
    382,972.38x = 528,497.43 × 210,886.76
  4. Step 4: Simplify right side
    382,972.38x = 111,453,111,211.45
  5. Step 5: Solve for x
    x = 111,453,111,211.45/382,972.38
  6. Step 6: Final answer
    x = 291,021.28

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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.