Home / 814,421.56-1,123,863.84-451,841.56

Finding the Fourth Proportional to 814,421.56, 1,123,863.84 and 451,841.56

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Solution

The fourth proportional to 814,421.56, 1,123,863.84 and 451,841.56 is: 623,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,421.56 : 1,123,863.84 = 451,841.56 : x
  2. Step 2: Convert to fraction form
    814,421.56/1,123,863.84 = 451,841.56/x
  3. Step 3: Cross multiply
    814,421.56x = 1,123,863.84 × 451,841.56
  4. Step 4: Simplify right side
    814,421.56x = 507,808,390,693.19
  5. Step 5: Solve for x
    x = 507,808,390,693.19/814,421.56
  6. Step 6: Final answer
    x = 623,520.32

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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.