Home / 691,486.80-1,037,230.20-658,827.60

Finding the Fourth Proportional to 691,486.80, 1,037,230.20 and 658,827.60

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Solution

The fourth proportional to 691,486.80, 1,037,230.20 and 658,827.60 is: 988,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,486.80 : 1,037,230.20 = 658,827.60 : x
  2. Step 2: Convert to fraction form
    691,486.80/1,037,230.20 = 658,827.60/x
  3. Step 3: Cross multiply
    691,486.80x = 1,037,230.20 × 658,827.60
  4. Step 4: Simplify right side
    691,486.80x = 683,355,883,313.52
  5. Step 5: Solve for x
    x = 683,355,883,313.52/691,486.80
  6. Step 6: Final answer
    x = 988,241.40

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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.