Home / 814,391.30-1,123,994.88-451,931.58

Finding the Fourth Proportional to 814,391.30, 1,123,994.88 and 451,931.58

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Solution

The fourth proportional to 814,391.30, 1,123,994.88 and 451,931.58 is: 623,740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,391.30 : 1,123,994.88 = 451,931.58 : x
  2. Step 2: Convert to fraction form
    814,391.30/1,123,994.88 = 451,931.58/x
  3. Step 3: Cross multiply
    814,391.30x = 1,123,994.88 × 451,931.58
  4. Step 4: Simplify right side
    814,391.30x = 507,968,782,030.31
  5. Step 5: Solve for x
    x = 507,968,782,030.31/814,391.30
  6. Step 6: Final answer
    x = 623,740.44

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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.