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Finding the Fourth Proportional to 635,307.14, 877,134.13 and 393,847.76

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Solution

The fourth proportional to 635,307.14, 877,134.13 and 393,847.76 is: 543,764.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,307.14 : 877,134.13 = 393,847.76 : x
  2. Step 2: Convert to fraction form
    635,307.14/877,134.13 = 393,847.76/x
  3. Step 3: Cross multiply
    635,307.14x = 877,134.13 × 393,847.76
  4. Step 4: Simplify right side
    635,307.14x = 345,457,312,320.05
  5. Step 5: Solve for x
    x = 345,457,312,320.05/635,307.14
  6. Step 6: Final answer
    x = 543,764.25

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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.