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Finding the Fourth Proportional to 445,645.60, 668,554.80 and 224,029.60

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Solution

The fourth proportional to 445,645.60, 668,554.80 and 224,029.60 is: 336,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,645.60 : 668,554.80 = 224,029.60 : x
  2. Step 2: Convert to fraction form
    445,645.60/668,554.80 = 224,029.60/x
  3. Step 3: Cross multiply
    445,645.60x = 668,554.80 × 224,029.60
  4. Step 4: Simplify right side
    445,645.60x = 149,776,064,422.08
  5. Step 5: Solve for x
    x = 149,776,064,422.08/445,645.60
  6. Step 6: Final answer
    x = 336,087.83

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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.