Home / 699,815.17-966,209.75-538,385.41

Finding the Fourth Proportional to 699,815.17, 966,209.75 and 538,385.41

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Solution

The fourth proportional to 699,815.17, 966,209.75 and 538,385.41 is: 743,329.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,815.17 : 966,209.75 = 538,385.41 : x
  2. Step 2: Convert to fraction form
    699,815.17/966,209.75 = 538,385.41/x
  3. Step 3: Cross multiply
    699,815.17x = 966,209.75 × 538,385.41
  4. Step 4: Simplify right side
    699,815.17x = 520,193,232,399.75
  5. Step 5: Solve for x
    x = 520,193,232,399.75/699,815.17
  6. Step 6: Final answer
    x = 743,329.46

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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.