Home / 825,363.58-1,238,223.54-256,733.86

Finding the Fourth Proportional to 825,363.58, 1,238,223.54 and 256,733.86

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Solution

The fourth proportional to 825,363.58, 1,238,223.54 and 256,733.86 is: 385,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,363.58 : 1,238,223.54 = 256,733.86 : x
  2. Step 2: Convert to fraction form
    825,363.58/1,238,223.54 = 256,733.86/x
  3. Step 3: Cross multiply
    825,363.58x = 1,238,223.54 × 256,733.86
  4. Step 4: Simplify right side
    825,363.58x = 317,893,908,967.06
  5. Step 5: Solve for x
    x = 317,893,908,967.06/825,363.58
  6. Step 6: Final answer
    x = 385,156.21

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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.