Home / 916,929.60-1,376,431.20-543,163.20

Finding the Fourth Proportional to 916,929.60, 1,376,431.20 and 543,163.20

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Solution

The fourth proportional to 916,929.60, 1,376,431.20 and 543,163.20 is: 815,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,929.60 : 1,376,431.20 = 543,163.20 : x
  2. Step 2: Convert to fraction form
    916,929.60/1,376,431.20 = 543,163.20/x
  3. Step 3: Cross multiply
    916,929.60x = 1,376,431.20 × 543,163.20
  4. Step 4: Simplify right side
    916,929.60x = 747,626,775,171.84
  5. Step 5: Solve for x
    x = 747,626,775,171.84/916,929.60
  6. Step 6: Final answer
    x = 815,358.97

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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.