Home / 684,941.88-945,320.07-394,497.62

Finding the Fourth Proportional to 684,941.88, 945,320.07 and 394,497.62

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Solution

The fourth proportional to 684,941.88, 945,320.07 and 394,497.62 is: 544,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,941.88 : 945,320.07 = 394,497.62 : x
  2. Step 2: Convert to fraction form
    684,941.88/945,320.07 = 394,497.62/x
  3. Step 3: Cross multiply
    684,941.88x = 945,320.07 × 394,497.62
  4. Step 4: Simplify right side
    684,941.88x = 372,926,518,050.95
  5. Step 5: Solve for x
    x = 372,926,518,050.95/684,941.88
  6. Step 6: Final answer
    x = 544,464.47

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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.