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Finding the Fourth Proportional to 561,158.80, 841,738.20 and 336,772.60

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Solution

The fourth proportional to 561,158.80, 841,738.20 and 336,772.60 is: 505,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,158.80 : 841,738.20 = 336,772.60 : x
  2. Step 2: Convert to fraction form
    561,158.80/841,738.20 = 336,772.60/x
  3. Step 3: Cross multiply
    561,158.80x = 841,738.20 × 336,772.60
  4. Step 4: Simplify right side
    561,158.80x = 283,474,362,133.32
  5. Step 5: Solve for x
    x = 283,474,362,133.32/561,158.80
  6. Step 6: Final answer
    x = 505,158.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.