Home / 819,699.58-1,131,183.22-457,123.84

Finding the Fourth Proportional to 819,699.58, 1,131,183.22 and 457,123.84

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Solution

The fourth proportional to 819,699.58, 1,131,183.22 and 457,123.84 is: 630,829.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,699.58 : 1,131,183.22 = 457,123.84 : x
  2. Step 2: Convert to fraction form
    819,699.58/1,131,183.22 = 457,123.84/x
  3. Step 3: Cross multiply
    819,699.58x = 1,131,183.22 × 457,123.84
  4. Step 4: Simplify right side
    819,699.58x = 517,090,814,442.01
  5. Step 5: Solve for x
    x = 517,090,814,442.01/819,699.58
  6. Step 6: Final answer
    x = 630,829.67

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1.5x scale

Why These Related Problems?

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