Home / 579,424,896.20-869,137,344.30-443,376,000.20

Finding the Fourth Proportional to 579,424,896.20, 869,137,344.30 and 443,376,000.20

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Solution

The fourth proportional to 579,424,896.20, 869,137,344.30 and 443,376,000.20 is: 665,064,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,424,896.20 : 869,137,344.30 = 443,376,000.20 : x
  2. Step 2: Convert to fraction form
    579,424,896.20/869,137,344.30 = 443,376,000.20/x
  3. Step 3: Cross multiply
    579,424,896.20x = 869,137,344.30 × 443,376,000.20
  4. Step 4: Simplify right side
    579,424,896.20x = 385,354,639,340,184,256
  5. Step 5: Solve for x
    x = 385,354,639,340,184,256/579,424,896.20
  6. Step 6: Final answer
    x = 665,064,000.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.