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Finding the Fourth Proportional to 489,682.40, 734,523.60 and 489,682.40

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Solution

The fourth proportional to 489,682.40, 734,523.60 and 489,682.40 is: 734,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,682.40 : 734,523.60 = 489,682.40 : x
  2. Step 2: Convert to fraction form
    489,682.40/734,523.60 = 489,682.40/x
  3. Step 3: Cross multiply
    489,682.40x = 734,523.60 × 489,682.40
  4. Step 4: Simplify right side
    489,682.40x = 359,683,279,304.64
  5. Step 5: Solve for x
    x = 359,683,279,304.64/489,682.40
  6. Step 6: Final answer
    x = 734,523.60

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Similar ratio
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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.