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Finding the Fourth Proportional to 371,602.26, 512,808.30 and 201,837.60

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Solution

The fourth proportional to 371,602.26, 512,808.30 and 201,837.60 is: 278,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,602.26 : 512,808.30 = 201,837.60 : x
  2. Step 2: Convert to fraction form
    371,602.26/512,808.30 = 201,837.60/x
  3. Step 3: Cross multiply
    371,602.26x = 512,808.30 × 201,837.60
  4. Step 4: Simplify right side
    371,602.26x = 103,503,996,532.08
  5. Step 5: Solve for x
    x = 103,503,996,532.08/371,602.26
  6. Step 6: Final answer
    x = 278,534.36

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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.