Home / 819,787.59-1,131,308.88-457,234.94

Finding the Fourth Proportional to 819,787.59, 1,131,308.88 and 457,234.94

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Solution

The fourth proportional to 819,787.59, 1,131,308.88 and 457,234.94 is: 630,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,787.59 : 1,131,308.88 = 457,234.94 : x
  2. Step 2: Convert to fraction form
    819,787.59/1,131,308.88 = 457,234.94/x
  3. Step 3: Cross multiply
    819,787.59x = 1,131,308.88 × 457,234.94
  4. Step 4: Simplify right side
    819,787.59x = 517,273,942,211.72
  5. Step 5: Solve for x
    x = 517,273,942,211.72/819,787.59
  6. Step 6: Final answer
    x = 630,985.33

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Double scale
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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.