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Finding the Fourth Proportional to 265,724.40, 398,586.60 and 125,756.40

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Solution

The fourth proportional to 265,724.40, 398,586.60 and 125,756.40 is: 188,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,724.40 : 398,586.60 = 125,756.40 : x
  2. Step 2: Convert to fraction form
    265,724.40/398,586.60 = 125,756.40/x
  3. Step 3: Cross multiply
    265,724.40x = 398,586.60 × 125,756.40
  4. Step 4: Simplify right side
    265,724.40x = 50,124,815,904.24
  5. Step 5: Solve for x
    x = 50,124,815,904.24/265,724.40
  6. Step 6: Final answer
    x = 188,634.60

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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.