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Finding the Fourth Proportional to 611,059.07, 843,362.89 and 356,410.26

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Solution

The fourth proportional to 611,059.07, 843,362.89 and 356,410.26 is: 491,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,059.07 : 843,362.89 = 356,410.26 : x
  2. Step 2: Convert to fraction form
    611,059.07/843,362.89 = 356,410.26/x
  3. Step 3: Cross multiply
    611,059.07x = 843,362.89 × 356,410.26
  4. Step 4: Simplify right side
    611,059.07x = 300,583,186,008.23
  5. Step 5: Solve for x
    x = 300,583,186,008.23/611,059.07
  6. Step 6: Final answer
    x = 491,905.28

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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.