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Finding the Fourth Proportional to 691,411.37, 954,210.35 and 419,548.14

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Solution

The fourth proportional to 691,411.37, 954,210.35 and 419,548.14 is: 579,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,411.37 : 954,210.35 = 419,548.14 : x
  2. Step 2: Convert to fraction form
    691,411.37/954,210.35 = 419,548.14/x
  3. Step 3: Cross multiply
    691,411.37x = 954,210.35 × 419,548.14
  4. Step 4: Simplify right side
    691,411.37x = 400,337,178,560.12
  5. Step 5: Solve for x
    x = 400,337,178,560.12/691,411.37
  6. Step 6: Final answer
    x = 579,014.46

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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.