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Finding the Fourth Proportional to 492,695.76, 679,919.88 and 266,341.68

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Solution

The fourth proportional to 492,695.76, 679,919.88 and 266,341.68 is: 367,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,695.76 : 679,919.88 = 266,341.68 : x
  2. Step 2: Convert to fraction form
    492,695.76/679,919.88 = 266,341.68/x
  3. Step 3: Cross multiply
    492,695.76x = 679,919.88 × 266,341.68
  4. Step 4: Simplify right side
    492,695.76x = 181,091,003,104.60
  5. Step 5: Solve for x
    x = 181,091,003,104.60/492,695.76
  6. Step 6: Final answer
    x = 367,551.37

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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.