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Finding the Fourth Proportional to 611,141.67, 843,362.82 and 339,193.62

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Solution

The fourth proportional to 611,141.67, 843,362.82 and 339,193.62 is: 468,080.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,141.67 : 843,362.82 = 339,193.62 : x
  2. Step 2: Convert to fraction form
    611,141.67/843,362.82 = 339,193.62/x
  3. Step 3: Cross multiply
    611,141.67x = 843,362.82 × 339,193.62
  4. Step 4: Simplify right side
    611,141.67x = 286,063,287,889.21
  5. Step 5: Solve for x
    x = 286,063,287,889.21/611,141.67
  6. Step 6: Final answer
    x = 468,080.16

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1.5x scale

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.