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Finding the Fourth Proportional to 418,887.40, 628,374.84 and 241,594.60

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Solution

The fourth proportional to 418,887.40, 628,374.84 and 241,594.60 is: 362,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,887.40 : 628,374.84 = 241,594.60 : x
  2. Step 2: Convert to fraction form
    418,887.40/628,374.84 = 241,594.60/x
  3. Step 3: Cross multiply
    418,887.40x = 628,374.84 × 241,594.60
  4. Step 4: Simplify right side
    418,887.40x = 151,811,968,119.86
  5. Step 5: Solve for x
    x = 151,811,968,119.86/418,887.40
  6. Step 6: Final answer
    x = 362,417.13

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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.