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Finding the Fourth Proportional to 431,172.01, 594,978.78 and 240,181.30

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Solution

The fourth proportional to 431,172.01, 594,978.78 and 240,181.30 is: 331,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,172.01 : 594,978.78 = 240,181.30 : x
  2. Step 2: Convert to fraction form
    431,172.01/594,978.78 = 240,181.30/x
  3. Step 3: Cross multiply
    431,172.01x = 594,978.78 × 240,181.30
  4. Step 4: Simplify right side
    431,172.01x = 142,902,776,852.81
  5. Step 5: Solve for x
    x = 142,902,776,852.81/431,172.01
  6. Step 6: Final answer
    x = 331,428.70

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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.