Home / 819,787.53-1,131,308.80-457,234.88

Finding the Fourth Proportional to 819,787.53, 1,131,308.80 and 457,234.88

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Solution

The fourth proportional to 819,787.53, 1,131,308.80 and 457,234.88 is: 630,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,787.53 : 1,131,308.80 = 457,234.88 : x
  2. Step 2: Convert to fraction form
    819,787.53/1,131,308.80 = 457,234.88/x
  3. Step 3: Cross multiply
    819,787.53x = 1,131,308.80 × 457,234.88
  4. Step 4: Simplify right side
    819,787.53x = 517,273,835,468.23
  5. Step 5: Solve for x
    x = 517,273,835,468.23/819,787.53
  6. Step 6: Final answer
    x = 630,985.25

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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.