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Finding the Fourth Proportional to 489,724.10, 734,586.15 and 489,724.10

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Solution

The fourth proportional to 489,724.10, 734,586.15 and 489,724.10 is: 734,586.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,724.10 : 734,586.15 = 489,724.10 : x
  2. Step 2: Convert to fraction form
    489,724.10/734,586.15 = 489,724.10/x
  3. Step 3: Cross multiply
    489,724.10x = 734,586.15 × 489,724.10
  4. Step 4: Simplify right side
    489,724.10x = 359,744,541,181.22
  5. Step 5: Solve for x
    x = 359,744,541,181.22/489,724.10
  6. Step 6: Final answer
    x = 734,586.15

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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.