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Finding the Fourth Proportional to 492,423.84, 679,543.83 and 266,069.34

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Solution

The fourth proportional to 492,423.84, 679,543.83 and 266,069.34 is: 367,175.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,423.84 : 679,543.83 = 266,069.34 : x
  2. Step 2: Convert to fraction form
    492,423.84/679,543.83 = 266,069.34/x
  3. Step 3: Cross multiply
    492,423.84x = 679,543.83 × 266,069.34
  4. Step 4: Simplify right side
    492,423.84x = 180,805,778,349.17
  5. Step 5: Solve for x
    x = 180,805,778,349.17/492,423.84
  6. Step 6: Final answer
    x = 367,175.11

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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.