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Finding the Fourth Proportional to 492,368.88, 679,469.40 and 266,014.32

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Solution

The fourth proportional to 492,368.88, 679,469.40 and 266,014.32 is: 367,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,368.88 : 679,469.40 = 266,014.32 : x
  2. Step 2: Convert to fraction form
    492,368.88/679,469.40 = 266,014.32/x
  3. Step 3: Cross multiply
    492,368.88x = 679,469.40 × 266,014.32
  4. Step 4: Simplify right side
    492,368.88x = 180,748,590,401.81
  5. Step 5: Solve for x
    x = 180,748,590,401.81/492,368.88
  6. Step 6: Final answer
    x = 367,099.95

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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.