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Finding the Fourth Proportional to 423,692.48, 635,903.20 and 245,952.56

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Solution

The fourth proportional to 423,692.48, 635,903.20 and 245,952.56 is: 369,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,692.48 : 635,903.20 = 245,952.56 : x
  2. Step 2: Convert to fraction form
    423,692.48/635,903.20 = 245,952.56/x
  3. Step 3: Cross multiply
    423,692.48x = 635,903.20 × 245,952.56
  4. Step 4: Simplify right side
    423,692.48x = 156,402,019,952.19
  5. Step 5: Solve for x
    x = 156,402,019,952.19/423,692.48
  6. Step 6: Final answer
    x = 369,140.42

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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.