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Finding the Fourth Proportional to 440,749.60, 608,026.62 and 319,625.26

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Solution

The fourth proportional to 440,749.60, 608,026.62 and 319,625.26 is: 440,932.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,749.60 : 608,026.62 = 319,625.26 : x
  2. Step 2: Convert to fraction form
    440,749.60/608,026.62 = 319,625.26/x
  3. Step 3: Cross multiply
    440,749.60x = 608,026.62 × 319,625.26
  4. Step 4: Simplify right side
    440,749.60x = 194,340,666,504.42
  5. Step 5: Solve for x
    x = 194,340,666,504.42/440,749.60
  6. Step 6: Final answer
    x = 440,932.14

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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.