Home / 677,221.66-934,661.16-419,181.43

Finding the Fourth Proportional to 677,221.66, 934,661.16 and 419,181.43

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Solution

The fourth proportional to 677,221.66, 934,661.16 and 419,181.43 is: 578,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,221.66 : 934,661.16 = 419,181.43 : x
  2. Step 2: Convert to fraction form
    677,221.66/934,661.16 = 419,181.43/x
  3. Step 3: Cross multiply
    677,221.66x = 934,661.16 × 419,181.43
  4. Step 4: Simplify right side
    677,221.66x = 391,792,601,614.26
  5. Step 5: Solve for x
    x = 391,792,601,614.26/677,221.66
  6. Step 6: Final answer
    x = 578,529.34

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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.