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Finding the Fourth Proportional to 282,503.84, 389,858.13 and 153,444.83

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Solution

The fourth proportional to 282,503.84, 389,858.13 and 153,444.83 is: 211,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,503.84 : 389,858.13 = 153,444.83 : x
  2. Step 2: Convert to fraction form
    282,503.84/389,858.13 = 153,444.83/x
  3. Step 3: Cross multiply
    282,503.84x = 389,858.13 × 153,444.83
  4. Step 4: Simplify right side
    282,503.84x = 59,821,714,481.97
  5. Step 5: Solve for x
    x = 59,821,714,481.97/282,503.84
  6. Step 6: Final answer
    x = 211,755.41

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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.