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Finding the Fourth Proportional to 468,278.96, 646,224.92 and 253,419.02

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Solution

The fourth proportional to 468,278.96, 646,224.92 and 253,419.02 is: 349,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,278.96 : 646,224.92 = 253,419.02 : x
  2. Step 2: Convert to fraction form
    468,278.96/646,224.92 = 253,419.02/x
  3. Step 3: Cross multiply
    468,278.96x = 646,224.92 × 253,419.02
  4. Step 4: Simplify right side
    468,278.96x = 163,765,685,925.98
  5. Step 5: Solve for x
    x = 163,765,685,925.98/468,278.96
  6. Step 6: Final answer
    x = 349,718.22

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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.