Home / 3,316,465.82-4,974,701.20-920,312.75

Finding the Fourth Proportional to 3,316,465.82, 4,974,701.20 and 920,312.75

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Solution

The fourth proportional to 3,316,465.82, 4,974,701.20 and 920,312.75 is: 1,380,469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316,465.82 : 4,974,701.20 = 920,312.75 : x
  2. Step 2: Convert to fraction form
    3,316,465.82/4,974,701.20 = 920,312.75/x
  3. Step 3: Cross multiply
    3,316,465.82x = 4,974,701.20 × 920,312.75
  4. Step 4: Simplify right side
    3,316,465.82x = 4,578,280,951,936.27
  5. Step 5: Solve for x
    x = 4,578,280,951,936.27/3,316,465.82
  6. Step 6: Final answer
    x = 1,380,469.81

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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.