Home / 676,909.46-933,538.82-418,745.36

Finding the Fourth Proportional to 676,909.46, 933,538.82 and 418,745.36

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Solution

The fourth proportional to 676,909.46, 933,538.82 and 418,745.36 is: 577,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,909.46 : 933,538.82 = 418,745.36 : x
  2. Step 2: Convert to fraction form
    676,909.46/933,538.82 = 418,745.36/x
  3. Step 3: Cross multiply
    676,909.46x = 933,538.82 × 418,745.36
  4. Step 4: Simplify right side
    676,909.46x = 390,915,049,254.88
  5. Step 5: Solve for x
    x = 390,915,049,254.88/676,909.46
  6. Step 6: Final answer
    x = 577,499.76

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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.