Home / 705,724.51-973,868.08-399,794.65

Finding the Fourth Proportional to 705,724.51, 973,868.08 and 399,794.65

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Solution

The fourth proportional to 705,724.51, 973,868.08 and 399,794.65 is: 551,698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,724.51 : 973,868.08 = 399,794.65 : x
  2. Step 2: Convert to fraction form
    705,724.51/973,868.08 = 399,794.65/x
  3. Step 3: Cross multiply
    705,724.51x = 973,868.08 × 399,794.65
  4. Step 4: Simplify right side
    705,724.51x = 389,347,242,320.95
  5. Step 5: Solve for x
    x = 389,347,242,320.95/705,724.51
  6. Step 6: Final answer
    x = 551,698.63

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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.