Home / 692,636.80-1,036,986.90-613,904.80

Finding the Fourth Proportional to 692,636.80, 1,036,986.90 and 613,904.80

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Solution

The fourth proportional to 692,636.80, 1,036,986.90 and 613,904.80 is: 919,112.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,636.80 : 1,036,986.90 = 613,904.80 : x
  2. Step 2: Convert to fraction form
    692,636.80/1,036,986.90 = 613,904.80/x
  3. Step 3: Cross multiply
    692,636.80x = 1,036,986.90 × 613,904.80
  4. Step 4: Simplify right side
    692,636.80x = 636,611,235,447.12
  5. Step 5: Solve for x
    x = 636,611,235,447.12/692,636.80
  6. Step 6: Final answer
    x = 919,112.64

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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.