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Finding the Fourth Proportional to 702,425.97, 969,350.22 and 380,135.97

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Solution

The fourth proportional to 702,425.97, 969,350.22 and 380,135.97 is: 524,588.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,425.97 : 969,350.22 = 380,135.97 : x
  2. Step 2: Convert to fraction form
    702,425.97/969,350.22 = 380,135.97/x
  3. Step 3: Cross multiply
    702,425.97x = 969,350.22 × 380,135.97
  4. Step 4: Simplify right side
    702,425.97x = 368,484,886,149.41
  5. Step 5: Solve for x
    x = 368,484,886,149.41/702,425.97
  6. Step 6: Final answer
    x = 524,588.93

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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.