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Finding the Fourth Proportional to 611,828.49, 844,229.75 and 339,871.40

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Solution

The fourth proportional to 611,828.49, 844,229.75 and 339,871.40 is: 468,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,828.49 : 844,229.75 = 339,871.40 : x
  2. Step 2: Convert to fraction form
    611,828.49/844,229.75 = 339,871.40/x
  3. Step 3: Cross multiply
    611,828.49x = 844,229.75 × 339,871.40
  4. Step 4: Simplify right side
    611,828.49x = 286,929,547,054.15
  5. Step 5: Solve for x
    x = 286,929,547,054.15/611,828.49
  6. Step 6: Final answer
    x = 468,970.56

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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.