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Finding the Fourth Proportional to 562,885.44, 776,855.68 and 321,112.32

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Solution

The fourth proportional to 562,885.44, 776,855.68 and 321,112.32 is: 443,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,885.44 : 776,855.68 = 321,112.32 : x
  2. Step 2: Convert to fraction form
    562,885.44/776,855.68 = 321,112.32/x
  3. Step 3: Cross multiply
    562,885.44x = 776,855.68 × 321,112.32
  4. Step 4: Simplify right side
    562,885.44x = 249,457,929,709.98
  5. Step 5: Solve for x
    x = 249,457,929,709.98/562,885.44
  6. Step 6: Final answer
    x = 443,177.09

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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.