Home / 705,623.40-973,843.76-419,144.63

Finding the Fourth Proportional to 705,623.40, 973,843.76 and 419,144.63

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Solution

The fourth proportional to 705,623.40, 973,843.76 and 419,144.63 is: 578,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,623.40 : 973,843.76 = 419,144.63 : x
  2. Step 2: Convert to fraction form
    705,623.40/973,843.76 = 419,144.63/x
  3. Step 3: Cross multiply
    705,623.40x = 973,843.76 × 419,144.63
  4. Step 4: Simplify right side
    705,623.40x = 408,181,378,641.65
  5. Step 5: Solve for x
    x = 408,181,378,641.65/705,623.40
  6. Step 6: Final answer
    x = 578,469.16

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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.