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Finding the Fourth Proportional to 468,063.86, 645,926.18 and 253,203.39

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Solution

The fourth proportional to 468,063.86, 645,926.18 and 253,203.39 is: 349,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,063.86 : 645,926.18 = 253,203.39 : x
  2. Step 2: Convert to fraction form
    468,063.86/645,926.18 = 253,203.39/x
  3. Step 3: Cross multiply
    468,063.86x = 645,926.18 × 253,203.39
  4. Step 4: Simplify right side
    468,063.86x = 163,550,697,199.73
  5. Step 5: Solve for x
    x = 163,550,697,199.73/468,063.86
  6. Step 6: Final answer
    x = 349,419.63

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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.