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Finding the Fourth Proportional to 317,044.80, 475,588.80 and 100,886.40

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Solution

The fourth proportional to 317,044.80, 475,588.80 and 100,886.40 is: 151,336.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,044.80 : 475,588.80 = 100,886.40 : x
  2. Step 2: Convert to fraction form
    317,044.80/475,588.80 = 100,886.40/x
  3. Step 3: Cross multiply
    317,044.80x = 475,588.80 × 100,886.40
  4. Step 4: Simplify right side
    317,044.80x = 47,980,441,912.32
  5. Step 5: Solve for x
    x = 47,980,441,912.32/317,044.80
  6. Step 6: Final answer
    x = 151,336.47

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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.