Home / 814,140.32-1,123,648.16-451,680.95

Finding the Fourth Proportional to 814,140.32, 1,123,648.16 and 451,680.95

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Solution

The fourth proportional to 814,140.32, 1,123,648.16 and 451,680.95 is: 623,394.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,140.32 : 1,123,648.16 = 451,680.95 : x
  2. Step 2: Convert to fraction form
    814,140.32/1,123,648.16 = 451,680.95/x
  3. Step 3: Cross multiply
    814,140.32x = 1,123,648.16 × 451,680.95
  4. Step 4: Simplify right side
    814,140.32x = 507,530,472,312.88
  5. Step 5: Solve for x
    x = 507,530,472,312.88/814,140.32
  6. Step 6: Final answer
    x = 623,394.35

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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.