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Finding the Fourth Proportional to 562,692.96, 776,525.58 and 317,690.64

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Solution

The fourth proportional to 562,692.96, 776,525.58 and 317,690.64 is: 438,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,692.96 : 776,525.58 = 317,690.64 : x
  2. Step 2: Convert to fraction form
    562,692.96/776,525.58 = 317,690.64/x
  3. Step 3: Cross multiply
    562,692.96x = 776,525.58 × 317,690.64
  4. Step 4: Simplify right side
    562,692.96x = 246,694,908,486.57
  5. Step 5: Solve for x
    x = 246,694,908,486.57/562,692.96
  6. Step 6: Final answer
    x = 438,418.33

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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.