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Finding the Fourth Proportional to 492,990.40, 739,485.60 and 160,566.40

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Solution

The fourth proportional to 492,990.40, 739,485.60 and 160,566.40 is: 240,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,990.40 : 739,485.60 = 160,566.40 : x
  2. Step 2: Convert to fraction form
    492,990.40/739,485.60 = 160,566.40/x
  3. Step 3: Cross multiply
    492,990.40x = 739,485.60 × 160,566.40
  4. Step 4: Simplify right side
    492,990.40x = 118,736,540,643.84
  5. Step 5: Solve for x
    x = 118,736,540,643.84/492,990.40
  6. Step 6: Final answer
    x = 240,849.60

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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.