Home / 291,639.60-436,788.63-243,394.38

Finding the Fourth Proportional to 291,639.60, 436,788.63 and 243,394.38

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Solution

The fourth proportional to 291,639.60, 436,788.63 and 243,394.38 is: 364,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,639.60 : 436,788.63 = 243,394.38 : x
  2. Step 2: Convert to fraction form
    291,639.60/436,788.63 = 243,394.38/x
  3. Step 3: Cross multiply
    291,639.60x = 436,788.63 × 243,394.38
  4. Step 4: Simplify right side
    291,639.60x = 106,311,897,789.90
  5. Step 5: Solve for x
    x = 106,311,897,789.90/291,639.60
  6. Step 6: Final answer
    x = 364,531.76

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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.