Home / 705,721.12-973,883.18-383,436.30

Finding the Fourth Proportional to 705,721.12, 973,883.18 and 383,436.30

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Solution

The fourth proportional to 705,721.12, 973,883.18 and 383,436.30 is: 529,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,721.12 : 973,883.18 = 383,436.30 : x
  2. Step 2: Convert to fraction form
    705,721.12/973,883.18 = 383,436.30/x
  3. Step 3: Cross multiply
    705,721.12x = 973,883.18 × 383,436.30
  4. Step 4: Simplify right side
    705,721.12x = 373,422,163,171.43
  5. Step 5: Solve for x
    x = 373,422,163,171.43/705,721.12
  6. Step 6: Final answer
    x = 529,135.59

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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.