Home / 818,151.28-1,129,082.01-455,552.15

Finding the Fourth Proportional to 818,151.28, 1,129,082.01 and 455,552.15

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Solution

The fourth proportional to 818,151.28, 1,129,082.01 and 455,552.15 is: 628,680.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,151.28 : 1,129,082.01 = 455,552.15 : x
  2. Step 2: Convert to fraction form
    818,151.28/1,129,082.01 = 455,552.15/x
  3. Step 3: Cross multiply
    818,151.28x = 1,129,082.01 × 455,552.15
  4. Step 4: Simplify right side
    818,151.28x = 514,355,737,181.82
  5. Step 5: Solve for x
    x = 514,355,737,181.82/818,151.28
  6. Step 6: Final answer
    x = 628,680.48

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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.