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Finding the Fourth Proportional to 936,825, 1,292,993.64 and 534,417

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Solution

The fourth proportional to 936,825, 1,292,993.64 and 534,417 is: 737,595.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,825 : 1,292,993.64 = 534,417 : x
  2. Step 2: Convert to fraction form
    936,825/1,292,993.64 = 534,417/x
  3. Step 3: Cross multiply
    936,825x = 1,292,993.64 × 534,417
  4. Step 4: Simplify right side
    936,825x = 690,997,782,107.88
  5. Step 5: Solve for x
    x = 690,997,782,107.88/936,825
  6. Step 6: Final answer
    x = 737,595.37

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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.