Home / 690,805.78-1,036,302.96-241,422.36

Finding the Fourth Proportional to 690,805.78, 1,036,302.96 and 241,422.36

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Solution

The fourth proportional to 690,805.78, 1,036,302.96 and 241,422.36 is: 362,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,805.78 : 1,036,302.96 = 241,422.36 : x
  2. Step 2: Convert to fraction form
    690,805.78/1,036,302.96 = 241,422.36/x
  3. Step 3: Cross multiply
    690,805.78x = 1,036,302.96 × 241,422.36
  4. Step 4: Simplify right side
    690,805.78x = 250,186,706,278.19
  5. Step 5: Solve for x
    x = 250,186,706,278.19/690,805.78
  6. Step 6: Final answer
    x = 362,166.49

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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.