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Finding the Fourth Proportional to 886,782, 1,223,759.30 and 484,374

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Solution

The fourth proportional to 886,782, 1,223,759.30 and 484,374 is: 668,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,782 : 1,223,759.30 = 484,374 : x
  2. Step 2: Convert to fraction form
    886,782/1,223,759.30 = 484,374/x
  3. Step 3: Cross multiply
    886,782x = 1,223,759.30 × 484,374
  4. Step 4: Simplify right side
    886,782x = 592,757,184,756.33
  5. Step 5: Solve for x
    x = 592,757,184,756.33/886,782
  6. Step 6: Final answer
    x = 668,436.19

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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.