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Finding the Fourth Proportional to 631,860.48, 871,973.32 and 359,924.48

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Solution

The fourth proportional to 631,860.48, 871,973.32 and 359,924.48 is: 496,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,860.48 : 871,973.32 = 359,924.48 : x
  2. Step 2: Convert to fraction form
    631,860.48/871,973.32 = 359,924.48/x
  3. Step 3: Cross multiply
    631,860.48x = 871,973.32 × 359,924.48
  4. Step 4: Simplify right side
    631,860.48x = 313,844,543,774.87
  5. Step 5: Solve for x
    x = 313,844,543,774.87/631,860.48
  6. Step 6: Final answer
    x = 496,699.12

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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.