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Finding the Fourth Proportional to 611,106.88, 843,336.48 and 339,192.24

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Solution

The fourth proportional to 611,106.88, 843,336.48 and 339,192.24 is: 468,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,106.88 : 843,336.48 = 339,192.24 : x
  2. Step 2: Convert to fraction form
    611,106.88/843,336.48 = 339,192.24/x
  3. Step 3: Cross multiply
    611,106.88x = 843,336.48 × 339,192.24
  4. Step 4: Simplify right side
    611,106.88x = 286,053,189,724.92
  5. Step 5: Solve for x
    x = 286,053,189,724.92/611,106.88
  6. Step 6: Final answer
    x = 468,090.28

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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.