Home / 379,343.30-523,487.64-207,257.57

Finding the Fourth Proportional to 379,343.30, 523,487.64 and 207,257.57

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Solution

The fourth proportional to 379,343.30, 523,487.64 and 207,257.57 is: 286,012.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,343.30 : 523,487.64 = 207,257.57 : x
  2. Step 2: Convert to fraction form
    379,343.30/523,487.64 = 207,257.57/x
  3. Step 3: Cross multiply
    379,343.30x = 523,487.64 × 207,257.57
  4. Step 4: Simplify right side
    379,343.30x = 108,496,776,314.29
  5. Step 5: Solve for x
    x = 108,496,776,314.29/379,343.30
  6. Step 6: Final answer
    x = 286,012.11

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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.