Home / 814,390.80-1,123,994.19-451,931.07

Finding the Fourth Proportional to 814,390.80, 1,123,994.19 and 451,931.07

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Solution

The fourth proportional to 814,390.80, 1,123,994.19 and 451,931.07 is: 623,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,390.80 : 1,123,994.19 = 451,931.07 : x
  2. Step 2: Convert to fraction form
    814,390.80/1,123,994.19 = 451,931.07/x
  3. Step 3: Cross multiply
    814,390.80x = 1,123,994.19 × 451,931.07
  4. Step 4: Simplify right side
    814,390.80x = 507,967,896,960.48
  5. Step 5: Solve for x
    x = 507,967,896,960.48/814,390.80
  6. Step 6: Final answer
    x = 623,739.73

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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.