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Finding the Fourth Proportional to 1,198,581.48, 1,654,048.08 and 654,724.80

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Solution

The fourth proportional to 1,198,581.48, 1,654,048.08 and 654,724.80 is: 903,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,581.48 : 1,654,048.08 = 654,724.80 : x
  2. Step 2: Convert to fraction form
    1,198,581.48/1,654,048.08 = 654,724.80/x
  3. Step 3: Cross multiply
    1,198,581.48x = 1,654,048.08 × 654,724.80
  4. Step 4: Simplify right side
    1,198,581.48x = 1,082,946,298,368.38
  5. Step 5: Solve for x
    x = 1,082,946,298,368.38/1,198,581.48
  6. Step 6: Final answer
    x = 903,523.30

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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.