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Finding the Fourth Proportional to 611,677.43, 843,774.41 and 568,378.47

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Solution

The fourth proportional to 611,677.43, 843,774.41 and 568,378.47 is: 784,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,677.43 : 843,774.41 = 568,378.47 : x
  2. Step 2: Convert to fraction form
    611,677.43/843,774.41 = 568,378.47/x
  3. Step 3: Cross multiply
    611,677.43x = 843,774.41 × 568,378.47
  4. Step 4: Simplify right side
    611,677.43x = 479,583,209,213.69
  5. Step 5: Solve for x
    x = 479,583,209,213.69/611,677.43
  6. Step 6: Final answer
    x = 784,045.95

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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.