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Finding the Fourth Proportional to 676,949.58, 934,615.17 and 435,651.49

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Solution

The fourth proportional to 676,949.58, 934,615.17 and 435,651.49 is: 601,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,949.58 : 934,615.17 = 435,651.49 : x
  2. Step 2: Convert to fraction form
    676,949.58/934,615.17 = 435,651.49/x
  3. Step 3: Cross multiply
    676,949.58x = 934,615.17 × 435,651.49
  4. Step 4: Simplify right side
    676,949.58x = 407,166,491,387.10
  5. Step 5: Solve for x
    x = 407,166,491,387.10/676,949.58
  6. Step 6: Final answer
    x = 601,472.40

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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.