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Finding the Fourth Proportional to 538,101.70, 805,597.35 and 328,149.70

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Solution

The fourth proportional to 538,101.70, 805,597.35 and 328,149.70 is: 491,276.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,101.70 : 805,597.35 = 328,149.70 : x
  2. Step 2: Convert to fraction form
    538,101.70/805,597.35 = 328,149.70/x
  3. Step 3: Cross multiply
    538,101.70x = 805,597.35 × 328,149.70
  4. Step 4: Simplify right side
    538,101.70x = 264,356,528,723.30
  5. Step 5: Solve for x
    x = 264,356,528,723.30/538,101.70
  6. Step 6: Final answer
    x = 491,276.14

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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.