Home / 914,468.46-1,261,986.72-521,993.40

Finding the Fourth Proportional to 914,468.46, 1,261,986.72 and 521,993.40

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Solution

The fourth proportional to 914,468.46, 1,261,986.72 and 521,993.40 is: 720,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,468.46 : 1,261,986.72 = 521,993.40 : x
  2. Step 2: Convert to fraction form
    914,468.46/1,261,986.72 = 521,993.40/x
  3. Step 3: Cross multiply
    914,468.46x = 1,261,986.72 × 521,993.40
  4. Step 4: Simplify right side
    914,468.46x = 658,748,738,727.65
  5. Step 5: Solve for x
    x = 658,748,738,727.65/914,468.46
  6. Step 6: Final answer
    x = 720,362.45

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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.