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Finding the Fourth Proportional to 531,813.20, 734,857.96 and 404,267.36

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Solution

The fourth proportional to 531,813.20, 734,857.96 and 404,267.36 is: 558,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,813.20 : 734,857.96 = 404,267.36 : x
  2. Step 2: Convert to fraction form
    531,813.20/734,857.96 = 404,267.36/x
  3. Step 3: Cross multiply
    531,813.20x = 734,857.96 × 404,267.36
  4. Step 4: Simplify right side
    531,813.20x = 297,079,087,464.19
  5. Step 5: Solve for x
    x = 297,079,087,464.19/531,813.20
  6. Step 6: Final answer
    x = 558,615.48

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1.5x scale

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.