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Finding the Fourth Proportional to 418,877.60, 628,316.40 and 241,730.60

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Solution

The fourth proportional to 418,877.60, 628,316.40 and 241,730.60 is: 362,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,877.60 : 628,316.40 = 241,730.60 : x
  2. Step 2: Convert to fraction form
    418,877.60/628,316.40 = 241,730.60/x
  3. Step 3: Cross multiply
    418,877.60x = 628,316.40 × 241,730.60
  4. Step 4: Simplify right side
    418,877.60x = 151,883,300,361.84
  5. Step 5: Solve for x
    x = 151,883,300,361.84/418,877.60
  6. Step 6: Final answer
    x = 362,595.90

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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.