Home / 817,433.70-1,225,800.60-256,511.94

Finding the Fourth Proportional to 817,433.70, 1,225,800.60 and 256,511.94

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Solution

The fourth proportional to 817,433.70, 1,225,800.60 and 256,511.94 is: 384,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,433.70 : 1,225,800.60 = 256,511.94 : x
  2. Step 2: Convert to fraction form
    817,433.70/1,225,800.60 = 256,511.94/x
  3. Step 3: Cross multiply
    817,433.70x = 1,225,800.60 × 256,511.94
  4. Step 4: Simplify right side
    817,433.70x = 314,432,489,959.16
  5. Step 5: Solve for x
    x = 314,432,489,959.16/817,433.70
  6. Step 6: Final answer
    x = 384,658.10

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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.