Home / 818,576.91-1,129,670.98-456,000.33

Finding the Fourth Proportional to 818,576.91, 1,129,670.98 and 456,000.33

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Solution

The fourth proportional to 818,576.91, 1,129,670.98 and 456,000.33 is: 629,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,576.91 : 1,129,670.98 = 456,000.33 : x
  2. Step 2: Convert to fraction form
    818,576.91/1,129,670.98 = 456,000.33/x
  3. Step 3: Cross multiply
    818,576.91x = 1,129,670.98 × 456,000.33
  4. Step 4: Simplify right side
    818,576.91x = 515,130,339,671.42
  5. Step 5: Solve for x
    x = 515,130,339,671.42/818,576.91
  6. Step 6: Final answer
    x = 629,299.87

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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.