Home / 676,849.64-933,934.11-386,328.56

Finding the Fourth Proportional to 676,849.64, 933,934.11 and 386,328.56

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Solution

The fourth proportional to 676,849.64, 933,934.11 and 386,328.56 is: 533,065.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,849.64 : 933,934.11 = 386,328.56 : x
  2. Step 2: Convert to fraction form
    676,849.64/933,934.11 = 386,328.56/x
  3. Step 3: Cross multiply
    676,849.64x = 933,934.11 × 386,328.56
  4. Step 4: Simplify right side
    676,849.64x = 360,805,415,181.51
  5. Step 5: Solve for x
    x = 360,805,415,181.51/676,849.64
  6. Step 6: Final answer
    x = 533,065.83

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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.