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Finding the Fourth Proportional to 403,501.40, 604,992.90 and 166,938.20

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Solution

The fourth proportional to 403,501.40, 604,992.90 and 166,938.20 is: 250,300.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,501.40 : 604,992.90 = 166,938.20 : x
  2. Step 2: Convert to fraction form
    403,501.40/604,992.90 = 166,938.20/x
  3. Step 3: Cross multiply
    403,501.40x = 604,992.90 × 166,938.20
  4. Step 4: Simplify right side
    403,501.40x = 100,996,425,738.78
  5. Step 5: Solve for x
    x = 100,996,425,738.78/403,501.40
  6. Step 6: Final answer
    x = 250,300.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.