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Finding the Fourth Proportional to 611,567.38, 917,655.83 and 274,848.76

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Solution

The fourth proportional to 611,567.38, 917,655.83 and 274,848.76 is: 412,410.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,567.38 : 917,655.83 = 274,848.76 : x
  2. Step 2: Convert to fraction form
    611,567.38/917,655.83 = 274,848.76/x
  3. Step 3: Cross multiply
    611,567.38x = 917,655.83 × 274,848.76
  4. Step 4: Simplify right side
    611,567.38x = 252,216,562,393.99
  5. Step 5: Solve for x
    x = 252,216,562,393.99/611,567.38
  6. Step 6: Final answer
    x = 412,410.10

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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.