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Finding the Fourth Proportional to 423,679.34, 584,762.35 and 251,692.84

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Solution

The fourth proportional to 423,679.34, 584,762.35 and 251,692.84 is: 347,386.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,679.34 : 584,762.35 = 251,692.84 : x
  2. Step 2: Convert to fraction form
    423,679.34/584,762.35 = 251,692.84/x
  3. Step 3: Cross multiply
    423,679.34x = 584,762.35 × 251,692.84
  4. Step 4: Simplify right side
    423,679.34x = 147,180,497,322.80
  5. Step 5: Solve for x
    x = 147,180,497,322.80/423,679.34
  6. Step 6: Final answer
    x = 347,386.54

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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.