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Finding the Fourth Proportional to 265,745.55, 398,618.33 and 265,745.55

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Solution

The fourth proportional to 265,745.55, 398,618.33 and 265,745.55 is: 398,618.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,745.55 : 398,618.33 = 265,745.55 : x
  2. Step 2: Convert to fraction form
    265,745.55/398,618.33 = 265,745.55/x
  3. Step 3: Cross multiply
    265,745.55x = 398,618.33 × 265,745.55
  4. Step 4: Simplify right side
    265,745.55x = 105,931,046,017.20
  5. Step 5: Solve for x
    x = 105,931,046,017.20/265,745.55
  6. Step 6: Final answer
    x = 398,618.33

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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.