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Finding the Fourth Proportional to 611,797.06, 917,826.78 and 256,606.36

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Solution

The fourth proportional to 611,797.06, 917,826.78 and 256,606.36 is: 384,964.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,797.06 : 917,826.78 = 256,606.36 : x
  2. Step 2: Convert to fraction form
    611,797.06/917,826.78 = 256,606.36/x
  3. Step 3: Cross multiply
    611,797.06x = 917,826.78 × 256,606.36
  4. Step 4: Simplify right side
    611,797.06x = 235,520,189,126.32
  5. Step 5: Solve for x
    x = 235,520,189,126.32/611,797.06
  6. Step 6: Final answer
    x = 384,964.57

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1.5x scale

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.