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Finding the Fourth Proportional to 631,864.84, 871,876.02 and 363,541

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Solution

The fourth proportional to 631,864.84, 871,876.02 and 363,541 is: 501,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,864.84 : 871,876.02 = 363,541 : x
  2. Step 2: Convert to fraction form
    631,864.84/871,876.02 = 363,541/x
  3. Step 3: Cross multiply
    631,864.84x = 871,876.02 × 363,541
  4. Step 4: Simplify right side
    631,864.84x = 316,962,680,186.82
  5. Step 5: Solve for x
    x = 316,962,680,186.82/631,864.84
  6. Step 6: Final answer
    x = 501,630.51

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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.