Home / 638,057.85-880,559.06-351,577.86

Finding the Fourth Proportional to 638,057.85, 880,559.06 and 351,577.86

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Solution

The fourth proportional to 638,057.85, 880,559.06 and 351,577.86 is: 485,199.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,057.85 : 880,559.06 = 351,577.86 : x
  2. Step 2: Convert to fraction form
    638,057.85/880,559.06 = 351,577.86/x
  3. Step 3: Cross multiply
    638,057.85x = 880,559.06 × 351,577.86
  4. Step 4: Simplify right side
    638,057.85x = 309,585,068,160.52
  5. Step 5: Solve for x
    x = 309,585,068,160.52/638,057.85
  6. Step 6: Final answer
    x = 485,199.06

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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.