Home / 496,493,586.56-685,594,406.40-311,173,155.20

Finding the Fourth Proportional to 496,493,586.56, 685,594,406.40 and 311,173,155.20

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Solution

The fourth proportional to 496,493,586.56, 685,594,406.40 and 311,173,155.20 is: 429,690,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,493,586.56 : 685,594,406.40 = 311,173,155.20 : x
  2. Step 2: Convert to fraction form
    496,493,586.56/685,594,406.40 = 311,173,155.20/x
  3. Step 3: Cross multiply
    496,493,586.56x = 685,594,406.40 × 311,173,155.20
  4. Step 4: Simplify right side
    496,493,586.56x = 213,338,574,626,959,072
  5. Step 5: Solve for x
    x = 213,338,574,626,959,072/496,493,586.56
  6. Step 6: Final answer
    x = 429,690,494.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.