Home / 828,441.81-1,241,988.39-259,530.21

Finding the Fourth Proportional to 828,441.81, 1,241,988.39 and 259,530.21

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Solution

The fourth proportional to 828,441.81, 1,241,988.39 and 259,530.21 is: 389,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,441.81 : 1,241,988.39 = 259,530.21 : x
  2. Step 2: Convert to fraction form
    828,441.81/1,241,988.39 = 259,530.21/x
  3. Step 3: Cross multiply
    828,441.81x = 1,241,988.39 × 259,530.21
  4. Step 4: Simplify right side
    828,441.81x = 322,333,507,674.26
  5. Step 5: Solve for x
    x = 322,333,507,674.26/828,441.81
  6. Step 6: Final answer
    x = 389,084.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.