Home / 645,166.17-967,619.34-613,156.77

Finding the Fourth Proportional to 645,166.17, 967,619.34 and 613,156.77

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Solution

The fourth proportional to 645,166.17, 967,619.34 and 613,156.77 is: 919,611.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,166.17 : 967,619.34 = 613,156.77 : x
  2. Step 2: Convert to fraction form
    645,166.17/967,619.34 = 613,156.77/x
  3. Step 3: Cross multiply
    645,166.17x = 967,619.34 × 613,156.77
  4. Step 4: Simplify right side
    645,166.17x = 593,302,349,103.93
  5. Step 5: Solve for x
    x = 593,302,349,103.93/645,166.17
  6. Step 6: Final answer
    x = 919,611.69

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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.