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Finding the Fourth Proportional to 427,460.72, 589,913.16 and 236,470.88

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Solution

The fourth proportional to 427,460.72, 589,913.16 and 236,470.88 is: 326,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,460.72 : 589,913.16 = 236,470.88 : x
  2. Step 2: Convert to fraction form
    427,460.72/589,913.16 = 236,470.88/x
  3. Step 3: Cross multiply
    427,460.72x = 589,913.16 × 236,470.88
  4. Step 4: Simplify right side
    427,460.72x = 139,497,284,068.78
  5. Step 5: Solve for x
    x = 139,497,284,068.78/427,460.72
  6. Step 6: Final answer
    x = 326,339.42

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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.