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Finding the Fourth Proportional to 290,810.04, 401,338.98 and 177,654.12

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Solution

The fourth proportional to 290,810.04, 401,338.98 and 177,654.12 is: 245,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,810.04 : 401,338.98 = 177,654.12 : x
  2. Step 2: Convert to fraction form
    290,810.04/401,338.98 = 177,654.12/x
  3. Step 3: Cross multiply
    290,810.04x = 401,338.98 × 177,654.12
  4. Step 4: Simplify right side
    290,810.04x = 71,299,523,313.60
  5. Step 5: Solve for x
    x = 71,299,523,313.60/290,810.04
  6. Step 6: Final answer
    x = 245,175.59

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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.