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Finding the Fourth Proportional to 401,866.76, 554,583.28 and 220,595.54

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Solution

The fourth proportional to 401,866.76, 554,583.28 and 220,595.54 is: 304,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,866.76 : 554,583.28 = 220,595.54 : x
  2. Step 2: Convert to fraction form
    401,866.76/554,583.28 = 220,595.54/x
  3. Step 3: Cross multiply
    401,866.76x = 554,583.28 × 220,595.54
  4. Step 4: Simplify right side
    401,866.76x = 122,338,598,961.54
  5. Step 5: Solve for x
    x = 122,338,598,961.54/401,866.76
  6. Step 6: Final answer
    x = 304,425.77

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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.