Home / 377,853.04-521,442.12-208,099.72

Finding the Fourth Proportional to 377,853.04, 521,442.12 and 208,099.72

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Solution

The fourth proportional to 377,853.04, 521,442.12 and 208,099.72 is: 287,180.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,853.04 : 521,442.12 = 208,099.72 : x
  2. Step 2: Convert to fraction form
    377,853.04/521,442.12 = 208,099.72/x
  3. Step 3: Cross multiply
    377,853.04x = 521,442.12 × 208,099.72
  4. Step 4: Simplify right side
    377,853.04x = 108,511,959,168.21
  5. Step 5: Solve for x
    x = 108,511,959,168.21/377,853.04
  6. Step 6: Final answer
    x = 287,180.33

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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.