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Finding the Fourth Proportional to 403,412.40, 605,118.60 and 107,924.40

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Solution

The fourth proportional to 403,412.40, 605,118.60 and 107,924.40 is: 161,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,412.40 : 605,118.60 = 107,924.40 : x
  2. Step 2: Convert to fraction form
    403,412.40/605,118.60 = 107,924.40/x
  3. Step 3: Cross multiply
    403,412.40x = 605,118.60 × 107,924.40
  4. Step 4: Simplify right side
    403,412.40x = 65,307,061,833.84
  5. Step 5: Solve for x
    x = 65,307,061,833.84/403,412.40
  6. Step 6: Final answer
    x = 161,886.60

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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.