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Finding the Fourth Proportional to 492,812.60, 738,927.30 and 256,616.60

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Solution

The fourth proportional to 492,812.60, 738,927.30 and 256,616.60 is: 384,773.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,812.60 : 738,927.30 = 256,616.60 : x
  2. Step 2: Convert to fraction form
    492,812.60/738,927.30 = 256,616.60/x
  3. Step 3: Cross multiply
    492,812.60x = 738,927.30 × 256,616.60
  4. Step 4: Simplify right side
    492,812.60x = 189,621,011,373.18
  5. Step 5: Solve for x
    x = 189,621,011,373.18/492,812.60
  6. Step 6: Final answer
    x = 384,773.06

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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.