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Finding the Fourth Proportional to 291,036.60, 436,554.90 and 271,353.60

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Solution

The fourth proportional to 291,036.60, 436,554.90 and 271,353.60 is: 407,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,036.60 : 436,554.90 = 271,353.60 : x
  2. Step 2: Convert to fraction form
    291,036.60/436,554.90 = 271,353.60/x
  3. Step 3: Cross multiply
    291,036.60x = 436,554.90 × 271,353.60
  4. Step 4: Simplify right side
    291,036.60x = 118,460,743,712.64
  5. Step 5: Solve for x
    x = 118,460,743,712.64/291,036.60
  6. Step 6: Final answer
    x = 407,030.40

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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.