Home / 538,003.02-742,438.58-296,280.44

Finding the Fourth Proportional to 538,003.02, 742,438.58 and 296,280.44

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Solution

The fourth proportional to 538,003.02, 742,438.58 and 296,280.44 is: 408,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,003.02 : 742,438.58 = 296,280.44 : x
  2. Step 2: Convert to fraction form
    538,003.02/742,438.58 = 296,280.44/x
  3. Step 3: Cross multiply
    538,003.02x = 742,438.58 × 296,280.44
  4. Step 4: Simplify right side
    538,003.02x = 219,970,029,155.38
  5. Step 5: Solve for x
    x = 219,970,029,155.38/538,003.02
  6. Step 6: Final answer
    x = 408,863.93

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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.