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Finding the Fourth Proportional to 371,256.94, 512,346.90 and 210,110.14

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Solution

The fourth proportional to 371,256.94, 512,346.90 and 210,110.14 is: 289,958.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,256.94 : 512,346.90 = 210,110.14 : x
  2. Step 2: Convert to fraction form
    371,256.94/512,346.90 = 210,110.14/x
  3. Step 3: Cross multiply
    371,256.94x = 512,346.90 × 210,110.14
  4. Step 4: Simplify right side
    371,256.94x = 107,649,278,887.57
  5. Step 5: Solve for x
    x = 107,649,278,887.57/371,256.94
  6. Step 6: Final answer
    x = 289,958.97

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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.