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Finding the Fourth Proportional to 265,613.04, 398,418.76 and 83,257.76

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Solution

The fourth proportional to 265,613.04, 398,418.76 and 83,257.76 is: 124,886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,613.04 : 398,418.76 = 83,257.76 : x
  2. Step 2: Convert to fraction form
    265,613.04/398,418.76 = 83,257.76/x
  3. Step 3: Cross multiply
    265,613.04x = 398,418.76 × 83,257.76
  4. Step 4: Simplify right side
    265,613.04x = 33,171,453,499.58
  5. Step 5: Solve for x
    x = 33,171,453,499.58/265,613.04
  6. Step 6: Final answer
    x = 124,886.39

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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.