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Finding the Fourth Proportional to 492,776.10, 680,029.56 and 266,421.60

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Solution

The fourth proportional to 492,776.10, 680,029.56 and 266,421.60 is: 367,661.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,776.10 : 680,029.56 = 266,421.60 : x
  2. Step 2: Convert to fraction form
    492,776.10/680,029.56 = 266,421.60/x
  3. Step 3: Cross multiply
    492,776.10x = 680,029.56 × 266,421.60
  4. Step 4: Simplify right side
    492,776.10x = 181,174,563,422.50
  5. Step 5: Solve for x
    x = 181,174,563,422.50/492,776.10
  6. Step 6: Final answer
    x = 367,661.02

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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.