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Finding the Fourth Proportional to 912,843.99, 1,259,627.67 and 504,881.01

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Solution

The fourth proportional to 912,843.99, 1,259,627.67 and 504,881.01 is: 696,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,843.99 : 1,259,627.67 = 504,881.01 : x
  2. Step 2: Convert to fraction form
    912,843.99/1,259,627.67 = 504,881.01/x
  3. Step 3: Cross multiply
    912,843.99x = 1,259,627.67 × 504,881.01
  4. Step 4: Simplify right side
    912,843.99x = 635,962,090,253.55
  5. Step 5: Solve for x
    x = 635,962,090,253.55/912,843.99
  6. Step 6: Final answer
    x = 696,682.12

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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.