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Finding the Fourth Proportional to 316,561.69, 475,098.56 and 245,315.39

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Solution

The fourth proportional to 316,561.69, 475,098.56 and 245,315.39 is: 368,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,561.69 : 475,098.56 = 245,315.39 : x
  2. Step 2: Convert to fraction form
    316,561.69/475,098.56 = 245,315.39/x
  3. Step 3: Cross multiply
    316,561.69x = 475,098.56 × 245,315.39
  4. Step 4: Simplify right side
    316,561.69x = 116,548,984,932.77
  5. Step 5: Solve for x
    x = 116,548,984,932.77/316,561.69
  6. Step 6: Final answer
    x = 368,171.48

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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.