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Finding the Fourth Proportional to 492,981.84, 680,315.28 and 266,627.28

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Solution

The fourth proportional to 492,981.84, 680,315.28 and 266,627.28 is: 367,945.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,981.84 : 680,315.28 = 266,627.28 : x
  2. Step 2: Convert to fraction form
    492,981.84/680,315.28 = 266,627.28/x
  3. Step 3: Cross multiply
    492,981.84x = 680,315.28 × 266,627.28
  4. Step 4: Simplify right side
    492,981.84x = 181,390,612,648.84
  5. Step 5: Solve for x
    x = 181,390,612,648.84/492,981.84
  6. Step 6: Final answer
    x = 367,945.83

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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.