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Finding the Fourth Proportional to 260,393.69, 390,590.54 and 247,096.73

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Solution

The fourth proportional to 260,393.69, 390,590.54 and 247,096.73 is: 370,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,393.69 : 390,590.54 = 247,096.73 : x
  2. Step 2: Convert to fraction form
    260,393.69/390,590.54 = 247,096.73/x
  3. Step 3: Cross multiply
    260,393.69x = 390,590.54 × 247,096.73
  4. Step 4: Simplify right side
    260,393.69x = 96,513,643,967.45
  5. Step 5: Solve for x
    x = 96,513,643,967.45/260,393.69
  6. Step 6: Final answer
    x = 370,645.10

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Similar ratio
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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.