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Finding the Fourth Proportional to 468,246.49, 646,181.85 and 253,386.53

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Solution

The fourth proportional to 468,246.49, 646,181.85 and 253,386.53 is: 349,674.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,246.49 : 646,181.85 = 253,386.53 : x
  2. Step 2: Convert to fraction form
    468,246.49/646,181.85 = 253,386.53/x
  3. Step 3: Cross multiply
    468,246.49x = 646,181.85 × 253,386.53
  4. Step 4: Simplify right side
    468,246.49x = 163,733,776,862.95
  5. Step 5: Solve for x
    x = 163,733,776,862.95/468,246.49
  6. Step 6: Final answer
    x = 349,674.33

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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.