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Finding the Fourth Proportional to 260,646.56, 391,018.64 and 118,502.24

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Solution

The fourth proportional to 260,646.56, 391,018.64 and 118,502.24 is: 177,775.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,646.56 : 391,018.64 = 118,502.24 : x
  2. Step 2: Convert to fraction form
    260,646.56/391,018.64 = 118,502.24/x
  3. Step 3: Cross multiply
    260,646.56x = 391,018.64 × 118,502.24
  4. Step 4: Simplify right side
    260,646.56x = 46,336,584,721.75
  5. Step 5: Solve for x
    x = 46,336,584,721.75/260,646.56
  6. Step 6: Final answer
    x = 177,775.55

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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.