Home / 693,682.18-957,403.21-403,383.58

Finding the Fourth Proportional to 693,682.18, 957,403.21 and 403,383.58

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Solution

The fourth proportional to 693,682.18, 957,403.21 and 403,383.58 is: 556,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,682.18 : 957,403.21 = 403,383.58 : x
  2. Step 2: Convert to fraction form
    693,682.18/957,403.21 = 403,383.58/x
  3. Step 3: Cross multiply
    693,682.18x = 957,403.21 × 403,383.58
  4. Step 4: Simplify right side
    693,682.18x = 386,200,729,566.28
  5. Step 5: Solve for x
    x = 386,200,729,566.28/693,682.18
  6. Step 6: Final answer
    x = 556,740.17

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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.