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Finding the Fourth Proportional to 775,503.48, 1,069,758 and 465,325.83

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Solution

The fourth proportional to 775,503.48, 1,069,758 and 465,325.83 is: 641,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,503.48 : 1,069,758 = 465,325.83 : x
  2. Step 2: Convert to fraction form
    775,503.48/1,069,758 = 465,325.83/x
  3. Step 3: Cross multiply
    775,503.48x = 1,069,758 × 465,325.83
  4. Step 4: Simplify right side
    775,503.48x = 497,786,029,249.14
  5. Step 5: Solve for x
    x = 497,786,029,249.14/775,503.48
  6. Step 6: Final answer
    x = 641,887.55

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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.