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Finding the Fourth Proportional to 436,115.84, 601,856.92 and 245,128.64

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Solution

The fourth proportional to 436,115.84, 601,856.92 and 245,128.64 is: 338,287.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,115.84 : 601,856.92 = 245,128.64 : x
  2. Step 2: Convert to fraction form
    436,115.84/601,856.92 = 245,128.64/x
  3. Step 3: Cross multiply
    436,115.84x = 601,856.92 × 245,128.64
  4. Step 4: Simplify right side
    436,115.84x = 147,532,368,274.19
  5. Step 5: Solve for x
    x = 147,532,368,274.19/436,115.84
  6. Step 6: Final answer
    x = 338,287.11

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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.