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Finding the Fourth Proportional to 438,178.71, 604,692.50 and 247,191.51

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Solution

The fourth proportional to 438,178.71, 604,692.50 and 247,191.51 is: 341,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,178.71 : 604,692.50 = 247,191.51 : x
  2. Step 2: Convert to fraction form
    438,178.71/604,692.50 = 247,191.51/x
  3. Step 3: Cross multiply
    438,178.71x = 604,692.50 × 247,191.51
  4. Step 4: Simplify right side
    438,178.71x = 149,474,850,924.72
  5. Step 5: Solve for x
    x = 149,474,850,924.72/438,178.71
  6. Step 6: Final answer
    x = 341,127.60

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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.