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Finding the Fourth Proportional to 505,237.17, 697,227.89 and 278,882.67

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Solution

The fourth proportional to 505,237.17, 697,227.89 and 278,882.67 is: 384,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,237.17 : 697,227.89 = 278,882.67 : x
  2. Step 2: Convert to fraction form
    505,237.17/697,227.89 = 278,882.67/x
  3. Step 3: Cross multiply
    505,237.17x = 697,227.89 × 278,882.67
  4. Step 4: Simplify right side
    505,237.17x = 194,444,774,167.25
  5. Step 5: Solve for x
    x = 194,444,774,167.25/505,237.17
  6. Step 6: Final answer
    x = 384,858.41

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1.5x scale

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.