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Finding the Fourth Proportional to 346,126.98, 477,871.44 and 265,399.40

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Solution

The fourth proportional to 346,126.98, 477,871.44 and 265,399.40 is: 366,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,126.98 : 477,871.44 = 265,399.40 : x
  2. Step 2: Convert to fraction form
    346,126.98/477,871.44 = 265,399.40/x
  3. Step 3: Cross multiply
    346,126.98x = 477,871.44 × 265,399.40
  4. Step 4: Simplify right side
    346,126.98x = 126,826,793,453.14
  5. Step 5: Solve for x
    x = 126,826,793,453.14/346,126.98
  6. Step 6: Final answer
    x = 366,416.95

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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.