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Finding the Fourth Proportional to 492,794.90, 680,057.93 and 266,440.40

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Solution

The fourth proportional to 492,794.90, 680,057.93 and 266,440.40 is: 367,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,794.90 : 680,057.93 = 266,440.40 : x
  2. Step 2: Convert to fraction form
    492,794.90/680,057.93 = 266,440.40/x
  3. Step 3: Cross multiply
    492,794.90x = 680,057.93 × 266,440.40
  4. Step 4: Simplify right side
    492,794.90x = 181,194,906,892.37
  5. Step 5: Solve for x
    x = 181,194,906,892.37/492,794.90
  6. Step 6: Final answer
    x = 367,688.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.