Home / 814,341.45-1,123,792.55-451,765.32

Finding the Fourth Proportional to 814,341.45, 1,123,792.55 and 451,765.32

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Solution

The fourth proportional to 814,341.45, 1,123,792.55 and 451,765.32 is: 623,436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,341.45 : 1,123,792.55 = 451,765.32 : x
  2. Step 2: Convert to fraction form
    814,341.45/1,123,792.55 = 451,765.32/x
  3. Step 3: Cross multiply
    814,341.45x = 1,123,792.55 × 451,765.32
  4. Step 4: Simplify right side
    814,341.45x = 507,690,500,964.37
  5. Step 5: Solve for x
    x = 507,690,500,964.37/814,341.45
  6. Step 6: Final answer
    x = 623,436.89

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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.