Home / 705,783.10-973,986.62-383,493.21

Finding the Fourth Proportional to 705,783.10, 973,986.62 and 383,493.21

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Solution

The fourth proportional to 705,783.10, 973,986.62 and 383,493.21 is: 529,223.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,783.10 : 973,986.62 = 383,493.21 : x
  2. Step 2: Convert to fraction form
    705,783.10/973,986.62 = 383,493.21/x
  3. Step 3: Cross multiply
    705,783.10x = 973,986.62 × 383,493.21
  4. Step 4: Simplify right side
    705,783.10x = 373,517,255,400.85
  5. Step 5: Solve for x
    x = 373,517,255,400.85/705,783.10
  6. Step 6: Final answer
    x = 529,223.86

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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.