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Finding the Fourth Proportional to 282,658.56, 389,906.40 and 176,490.24

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Solution

The fourth proportional to 282,658.56, 389,906.40 and 176,490.24 is: 243,455.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,658.56 : 389,906.40 = 176,490.24 : x
  2. Step 2: Convert to fraction form
    282,658.56/389,906.40 = 176,490.24/x
  3. Step 3: Cross multiply
    282,658.56x = 389,906.40 × 176,490.24
  4. Step 4: Simplify right side
    282,658.56x = 68,814,674,113.54
  5. Step 5: Solve for x
    x = 68,814,674,113.54/282,658.56
  6. Step 6: Final answer
    x = 243,455.12

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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.