Home / 436,919.78-602,985.39-243,364.61

Finding the Fourth Proportional to 436,919.78, 602,985.39 and 243,364.61

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Solution

The fourth proportional to 436,919.78, 602,985.39 and 243,364.61 is: 335,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,919.78 : 602,985.39 = 243,364.61 : x
  2. Step 2: Convert to fraction form
    436,919.78/602,985.39 = 243,364.61/x
  3. Step 3: Cross multiply
    436,919.78x = 602,985.39 × 243,364.61
  4. Step 4: Simplify right side
    436,919.78x = 146,745,304,273.05
  5. Step 5: Solve for x
    x = 146,745,304,273.05/436,919.78
  6. Step 6: Final answer
    x = 335,863.27

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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.