Home / 419,278.55-578,611.40-237,996.03

Finding the Fourth Proportional to 419,278.55, 578,611.40 and 237,996.03

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Solution

The fourth proportional to 419,278.55, 578,611.40 and 237,996.03 is: 328,438.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,278.55 : 578,611.40 = 237,996.03 : x
  2. Step 2: Convert to fraction form
    419,278.55/578,611.40 = 237,996.03/x
  3. Step 3: Cross multiply
    419,278.55x = 578,611.40 × 237,996.03
  4. Step 4: Simplify right side
    419,278.55x = 137,707,214,922.76
  5. Step 5: Solve for x
    x = 137,707,214,922.76/419,278.55
  6. Step 6: Final answer
    x = 328,438.50

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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.