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Finding the Fourth Proportional to 468,248.99, 646,185.31 and 253,389.03

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Solution

The fourth proportional to 468,248.99, 646,185.31 and 253,389.03 is: 349,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,248.99 : 646,185.31 = 253,389.03 : x
  2. Step 2: Convert to fraction form
    468,248.99/646,185.31 = 253,389.03/x
  3. Step 3: Cross multiply
    468,248.99x = 646,185.31 × 253,389.03
  4. Step 4: Simplify right side
    468,248.99x = 163,736,268,901.15
  5. Step 5: Solve for x
    x = 163,736,268,901.15/468,248.99
  6. Step 6: Final answer
    x = 349,677.78

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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.