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Finding the Fourth Proportional to 363,605.60, 545,408.40 and 114,287.60

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Solution

The fourth proportional to 363,605.60, 545,408.40 and 114,287.60 is: 171,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,605.60 : 545,408.40 = 114,287.60 : x
  2. Step 2: Convert to fraction form
    363,605.60/545,408.40 = 114,287.60/x
  3. Step 3: Cross multiply
    363,605.60x = 545,408.40 × 114,287.60
  4. Step 4: Simplify right side
    363,605.60x = 62,333,417,055.84
  5. Step 5: Solve for x
    x = 62,333,417,055.84/363,605.60
  6. Step 6: Final answer
    x = 171,431.40

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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.