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Finding the Fourth Proportional to 468,774.03, 646,908.35 and 253,913.43

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Solution

The fourth proportional to 468,774.03, 646,908.35 and 253,913.43 is: 350,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,774.03 : 646,908.35 = 253,913.43 : x
  2. Step 2: Convert to fraction form
    468,774.03/646,908.35 = 253,913.43/x
  3. Step 3: Cross multiply
    468,774.03x = 646,908.35 × 253,913.43
  4. Step 4: Simplify right side
    468,774.03x = 164,258,716,774.57
  5. Step 5: Solve for x
    x = 164,258,716,774.57/468,774.03
  6. Step 6: Final answer
    x = 350,400.63

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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.