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Finding the Fourth Proportional to 265,798.89, 398,698.32 and 68,806.89

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Solution

The fourth proportional to 265,798.89, 398,698.32 and 68,806.89 is: 103,210.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,798.89 : 398,698.32 = 68,806.89 : x
  2. Step 2: Convert to fraction form
    265,798.89/398,698.32 = 68,806.89/x
  3. Step 3: Cross multiply
    265,798.89x = 398,698.32 × 68,806.89
  4. Step 4: Simplify right side
    265,798.89x = 27,433,191,447.42
  5. Step 5: Solve for x
    x = 27,433,191,447.42/265,798.89
  6. Step 6: Final answer
    x = 103,210.33

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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.