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Finding the Fourth Proportional to 611,767.66, 844,215.89 and 339,852.67

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Solution

The fourth proportional to 611,767.66, 844,215.89 and 339,852.67 is: 468,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,767.66 : 844,215.89 = 339,852.67 : x
  2. Step 2: Convert to fraction form
    611,767.66/844,215.89 = 339,852.67/x
  3. Step 3: Cross multiply
    611,767.66x = 844,215.89 × 339,852.67
  4. Step 4: Simplify right side
    611,767.66x = 286,909,027,123.51
  5. Step 5: Solve for x
    x = 286,909,027,123.51/611,767.66
  6. Step 6: Final answer
    x = 468,983.65

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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.