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Finding the Fourth Proportional to 670,993.94, 926,025 and 384,540.68

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Solution

The fourth proportional to 670,993.94, 926,025 and 384,540.68 is: 530,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,993.94 : 926,025 = 384,540.68 : x
  2. Step 2: Convert to fraction form
    670,993.94/926,025 = 384,540.68/x
  3. Step 3: Cross multiply
    670,993.94x = 926,025 × 384,540.68
  4. Step 4: Simplify right side
    670,993.94x = 356,094,283,197
  5. Step 5: Solve for x
    x = 356,094,283,197/670,993.94
  6. Step 6: Final answer
    x = 530,696.72

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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.