Home / 759,601.80-1,139,402.70-198,636.30

Finding the Fourth Proportional to 759,601.80, 1,139,402.70 and 198,636.30

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Solution

The fourth proportional to 759,601.80, 1,139,402.70 and 198,636.30 is: 297,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,601.80 : 1,139,402.70 = 198,636.30 : x
  2. Step 2: Convert to fraction form
    759,601.80/1,139,402.70 = 198,636.30/x
  3. Step 3: Cross multiply
    759,601.80x = 1,139,402.70 × 198,636.30
  4. Step 4: Simplify right side
    759,601.80x = 226,326,736,538.01
  5. Step 5: Solve for x
    x = 226,326,736,538.01/759,601.80
  6. Step 6: Final answer
    x = 297,954.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.