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Finding the Fourth Proportional to 282,386.00, 389,697.45 and 155,073.44

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Solution

The fourth proportional to 282,386.00, 389,697.45 and 155,073.44 is: 214,003.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,386.00 : 389,697.45 = 155,073.44 : x
  2. Step 2: Convert to fraction form
    282,386.00/389,697.45 = 155,073.44/x
  3. Step 3: Cross multiply
    282,386.00x = 389,697.45 × 155,073.44
  4. Step 4: Simplify right side
    282,386.00x = 60,431,724,523.45
  5. Step 5: Solve for x
    x = 60,431,724,523.45/282,386.00
  6. Step 6: Final answer
    x = 214,003.97

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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.