Home / 398,623.20-597,934.80-188,671.20

Finding the Fourth Proportional to 398,623.20, 597,934.80 and 188,671.20

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Solution

The fourth proportional to 398,623.20, 597,934.80 and 188,671.20 is: 283,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,623.20 : 597,934.80 = 188,671.20 : x
  2. Step 2: Convert to fraction form
    398,623.20/597,934.80 = 188,671.20/x
  3. Step 3: Cross multiply
    398,623.20x = 597,934.80 × 188,671.20
  4. Step 4: Simplify right side
    398,623.20x = 112,813,076,237.76
  5. Step 5: Solve for x
    x = 112,813,076,237.76/398,623.20
  6. Step 6: Final answer
    x = 283,006.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.