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Finding the Fourth Proportional to 874,453.08, 1,311,863.94 and 283,431

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Solution

The fourth proportional to 874,453.08, 1,311,863.94 and 283,431 is: 425,206.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,453.08 : 1,311,863.94 = 283,431 : x
  2. Step 2: Convert to fraction form
    874,453.08/1,311,863.94 = 283,431/x
  3. Step 3: Cross multiply
    874,453.08x = 1,311,863.94 × 283,431
  4. Step 4: Simplify right side
    874,453.08x = 371,822,908,378.14
  5. Step 5: Solve for x
    x = 371,822,908,378.14/874,453.08
  6. Step 6: Final answer
    x = 425,206.24

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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.