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Finding the Fourth Proportional to 383,991.60, 575,987.40 and 265,796.40

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Solution

The fourth proportional to 383,991.60, 575,987.40 and 265,796.40 is: 398,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,991.60 : 575,987.40 = 265,796.40 : x
  2. Step 2: Convert to fraction form
    383,991.60/575,987.40 = 265,796.40/x
  3. Step 3: Cross multiply
    383,991.60x = 575,987.40 × 265,796.40
  4. Step 4: Simplify right side
    383,991.60x = 153,095,377,365.36
  5. Step 5: Solve for x
    x = 153,095,377,365.36/383,991.60
  6. Step 6: Final answer
    x = 398,694.60

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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.