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Finding the Fourth Proportional to 492,186.90, 738,280.35 and 482,855.70

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Solution

The fourth proportional to 492,186.90, 738,280.35 and 482,855.70 is: 724,283.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,186.90 : 738,280.35 = 482,855.70 : x
  2. Step 2: Convert to fraction form
    492,186.90/738,280.35 = 482,855.70/x
  3. Step 3: Cross multiply
    492,186.90x = 738,280.35 × 482,855.70
  4. Step 4: Simplify right side
    492,186.90x = 356,482,875,195.50
  5. Step 5: Solve for x
    x = 356,482,875,195.50/492,186.90
  6. Step 6: Final answer
    x = 724,283.55

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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.