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Finding the Fourth Proportional to 492,694.62, 679,918.23 and 266,340.12

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Solution

The fourth proportional to 492,694.62, 679,918.23 and 266,340.12 is: 367,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,694.62 : 679,918.23 = 266,340.12 : x
  2. Step 2: Convert to fraction form
    492,694.62/679,918.23 = 266,340.12/x
  3. Step 3: Cross multiply
    492,694.62x = 679,918.23 × 266,340.12
  4. Step 4: Simplify right side
    492,694.62x = 181,089,502,968.39
  5. Step 5: Solve for x
    x = 181,089,502,968.39/492,694.62
  6. Step 6: Final answer
    x = 367,549.18

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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.