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Finding the Fourth Proportional to 541,692.15, 812,849.36 and 423,030.39

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Solution

The fourth proportional to 541,692.15, 812,849.36 and 423,030.39 is: 634,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,692.15 : 812,849.36 = 423,030.39 : x
  2. Step 2: Convert to fraction form
    541,692.15/812,849.36 = 423,030.39/x
  3. Step 3: Cross multiply
    541,692.15x = 812,849.36 × 423,030.39
  4. Step 4: Simplify right side
    541,692.15x = 343,859,979,656.90
  5. Step 5: Solve for x
    x = 343,859,979,656.90/541,692.15
  6. Step 6: Final answer
    x = 634,788.56

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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.