Home / 528,608,255.85-792,912,383.78-392,559,359.85

Finding the Fourth Proportional to 528,608,255.85, 792,912,383.78 and 392,559,359.85

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Solution

The fourth proportional to 528,608,255.85, 792,912,383.78 and 392,559,359.85 is: 588,839,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,608,255.85 : 792,912,383.78 = 392,559,359.85 : x
  2. Step 2: Convert to fraction form
    528,608,255.85/792,912,383.78 = 392,559,359.85/x
  3. Step 3: Cross multiply
    528,608,255.85x = 792,912,383.78 × 392,559,359.85
  4. Step 4: Simplify right side
    528,608,255.85x = 311,265,177,791,851,520
  5. Step 5: Solve for x
    x = 311,265,177,791,851,520/528,608,255.85
  6. Step 6: Final answer
    x = 588,839,039.78

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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.