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Finding the Fourth Proportional to 683,882.60, 943,642.31 and 411,885.41

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Solution

The fourth proportional to 683,882.60, 943,642.31 and 411,885.41 is: 568,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,882.60 : 943,642.31 = 411,885.41 : x
  2. Step 2: Convert to fraction form
    683,882.60/943,642.31 = 411,885.41/x
  3. Step 3: Cross multiply
    683,882.60x = 943,642.31 × 411,885.41
  4. Step 4: Simplify right side
    683,882.60x = 388,672,492,970.06
  5. Step 5: Solve for x
    x = 388,672,492,970.06/683,882.60
  6. Step 6: Final answer
    x = 568,332.19

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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.