Home / 800,447.62-1,103,869.11-637,645.38

Finding the Fourth Proportional to 800,447.62, 1,103,869.11 and 637,645.38

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Solution

The fourth proportional to 800,447.62, 1,103,869.11 and 637,645.38 is: 879,354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,447.62 : 1,103,869.11 = 637,645.38 : x
  2. Step 2: Convert to fraction form
    800,447.62/1,103,869.11 = 637,645.38/x
  3. Step 3: Cross multiply
    800,447.62x = 1,103,869.11 × 637,645.38
  4. Step 4: Simplify right side
    800,447.62x = 703,877,038,116.21
  5. Step 5: Solve for x
    x = 703,877,038,116.21/800,447.62
  6. Step 6: Final answer
    x = 879,354.28

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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.