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Finding the Fourth Proportional to 260,390.75, 359,339.45 and 152,962.07

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Solution

The fourth proportional to 260,390.75, 359,339.45 and 152,962.07 is: 211,087.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,390.75 : 359,339.45 = 152,962.07 : x
  2. Step 2: Convert to fraction form
    260,390.75/359,339.45 = 152,962.07/x
  3. Step 3: Cross multiply
    260,390.75x = 359,339.45 × 152,962.07
  4. Step 4: Simplify right side
    260,390.75x = 54,965,303,543.15
  5. Step 5: Solve for x
    x = 54,965,303,543.15/260,390.75
  6. Step 6: Final answer
    x = 211,087.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.