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Finding the Fourth Proportional to 266,058.20, 398,431.20 and 176,828.60

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Solution

The fourth proportional to 266,058.20, 398,431.20 and 176,828.60 is: 264,806.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,058.20 : 398,431.20 = 176,828.60 : x
  2. Step 2: Convert to fraction form
    266,058.20/398,431.20 = 176,828.60/x
  3. Step 3: Cross multiply
    266,058.20x = 398,431.20 × 176,828.60
  4. Step 4: Simplify right side
    266,058.20x = 70,454,031,292.32
  5. Step 5: Solve for x
    x = 70,454,031,292.32/266,058.20
  6. Step 6: Final answer
    x = 264,806.84

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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.