Home / 908,136.45-1,253,228.20-526,384.66

Finding the Fourth Proportional to 908,136.45, 1,253,228.20 and 526,384.66

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Solution

The fourth proportional to 908,136.45, 1,253,228.20 and 526,384.66 is: 726,410.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,136.45 : 1,253,228.20 = 526,384.66 : x
  2. Step 2: Convert to fraction form
    908,136.45/1,253,228.20 = 526,384.66/x
  3. Step 3: Cross multiply
    908,136.45x = 1,253,228.20 × 526,384.66
  4. Step 4: Simplify right side
    908,136.45x = 659,680,099,959.41
  5. Step 5: Solve for x
    x = 659,680,099,959.41/908,136.45
  6. Step 6: Final answer
    x = 726,410.77

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Double scale
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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.