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Finding the Fourth Proportional to 348,232.44, 480,311.94 and 319,642.92

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Solution

The fourth proportional to 348,232.44, 480,311.94 and 319,642.92 is: 440,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,232.44 : 480,311.94 = 319,642.92 : x
  2. Step 2: Convert to fraction form
    348,232.44/480,311.94 = 319,642.92/x
  3. Step 3: Cross multiply
    348,232.44x = 480,311.94 × 319,642.92
  4. Step 4: Simplify right side
    348,232.44x = 153,528,311,012.47
  5. Step 5: Solve for x
    x = 153,528,311,012.47/348,232.44
  6. Step 6: Final answer
    x = 440,878.83

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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.