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Finding the Fourth Proportional to 260,879.42, 357,316.16 and 245,559.49

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Solution

The fourth proportional to 260,879.42, 357,316.16 and 245,559.49 is: 336,333.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,879.42 : 357,316.16 = 245,559.49 : x
  2. Step 2: Convert to fraction form
    260,879.42/357,316.16 = 245,559.49/x
  3. Step 3: Cross multiply
    260,879.42x = 357,316.16 × 245,559.49
  4. Step 4: Simplify right side
    260,879.42x = 87,742,374,018.36
  5. Step 5: Solve for x
    x = 87,742,374,018.36/260,879.42
  6. Step 6: Final answer
    x = 336,333.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.