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Finding the Fourth Proportional to 562,692.62, 776,558.94 and 320,980.52

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Solution

The fourth proportional to 562,692.62, 776,558.94 and 320,980.52 is: 442,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,692.62 : 776,558.94 = 320,980.52 : x
  2. Step 2: Convert to fraction form
    562,692.62/776,558.94 = 320,980.52/x
  3. Step 3: Cross multiply
    562,692.62x = 776,558.94 × 320,980.52
  4. Step 4: Simplify right side
    562,692.62x = 249,260,292,371.85
  5. Step 5: Solve for x
    x = 249,260,292,371.85/562,692.62
  6. Step 6: Final answer
    x = 442,977.72

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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.