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Finding the Fourth Proportional to 316,361.48, 436,575.58 and 180,417.56

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Solution

The fourth proportional to 316,361.48, 436,575.58 and 180,417.56 is: 248,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,361.48 : 436,575.58 = 180,417.56 : x
  2. Step 2: Convert to fraction form
    316,361.48/436,575.58 = 180,417.56/x
  3. Step 3: Cross multiply
    316,361.48x = 436,575.58 × 180,417.56
  4. Step 4: Simplify right side
    316,361.48x = 78,765,900,899.18
  5. Step 5: Solve for x
    x = 78,765,900,899.18/316,361.48
  6. Step 6: Final answer
    x = 248,974.37

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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.