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Finding the Fourth Proportional to 265,782.56, 398,673.84 and 125,555.36

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Solution

The fourth proportional to 265,782.56, 398,673.84 and 125,555.36 is: 188,333.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,782.56 : 398,673.84 = 125,555.36 : x
  2. Step 2: Convert to fraction form
    265,782.56/398,673.84 = 125,555.36/x
  3. Step 3: Cross multiply
    265,782.56x = 398,673.84 × 125,555.36
  4. Step 4: Simplify right side
    265,782.56x = 50,055,637,503.78
  5. Step 5: Solve for x
    x = 50,055,637,503.78/265,782.56
  6. Step 6: Final answer
    x = 188,333.04

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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.