Home / 528,087.60-792,131.40-318,135.60

Finding the Fourth Proportional to 528,087.60, 792,131.40 and 318,135.60

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Solution

The fourth proportional to 528,087.60, 792,131.40 and 318,135.60 is: 477,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,087.60 : 792,131.40 = 318,135.60 : x
  2. Step 2: Convert to fraction form
    528,087.60/792,131.40 = 318,135.60/x
  3. Step 3: Cross multiply
    528,087.60x = 792,131.40 × 318,135.60
  4. Step 4: Simplify right side
    528,087.60x = 252,005,198,217.84
  5. Step 5: Solve for x
    x = 252,005,198,217.84/528,087.60
  6. Step 6: Final answer
    x = 477,203.40

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Similar ratio
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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.