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Finding the Fourth Proportional to 691,415.56, 954,216.12 and 419,552.34

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Solution

The fourth proportional to 691,415.56, 954,216.12 and 419,552.34 is: 579,020.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,415.56 : 954,216.12 = 419,552.34 : x
  2. Step 2: Convert to fraction form
    691,415.56/954,216.12 = 419,552.34/x
  3. Step 3: Cross multiply
    691,415.56x = 954,216.12 × 419,552.34
  4. Step 4: Simplify right side
    691,415.56x = 400,343,606,011.72
  5. Step 5: Solve for x
    x = 400,343,606,011.72/691,415.56
  6. Step 6: Final answer
    x = 579,020.24

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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.