Home / 391,716.28-537,047.99-384,630.40

Finding the Fourth Proportional to 391,716.28, 537,047.99 and 384,630.40

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Solution

The fourth proportional to 391,716.28, 537,047.99 and 384,630.40 is: 527,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,716.28 : 537,047.99 = 384,630.40 : x
  2. Step 2: Convert to fraction form
    391,716.28/537,047.99 = 384,630.40/x
  3. Step 3: Cross multiply
    391,716.28x = 537,047.99 × 384,630.40
  4. Step 4: Simplify right side
    391,716.28x = 206,564,983,212.90
  5. Step 5: Solve for x
    x = 206,564,983,212.90/391,716.28
  6. Step 6: Final answer
    x = 527,333.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.