Home / 684,136.53-944,026.65-378,171.72

Finding the Fourth Proportional to 684,136.53, 944,026.65 and 378,171.72

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Solution

The fourth proportional to 684,136.53, 944,026.65 and 378,171.72 is: 521,831.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,136.53 : 944,026.65 = 378,171.72 : x
  2. Step 2: Convert to fraction form
    684,136.53/944,026.65 = 378,171.72/x
  3. Step 3: Cross multiply
    684,136.53x = 944,026.65 × 378,171.72
  4. Step 4: Simplify right side
    684,136.53x = 357,004,181,956.34
  5. Step 5: Solve for x
    x = 357,004,181,956.34/684,136.53
  6. Step 6: Final answer
    x = 521,831.78

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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.