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Finding the Fourth Proportional to 620,699.40, 931,049.10 and 246,722.40

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Solution

The fourth proportional to 620,699.40, 931,049.10 and 246,722.40 is: 370,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,699.40 : 931,049.10 = 246,722.40 : x
  2. Step 2: Convert to fraction form
    620,699.40/931,049.10 = 246,722.40/x
  3. Step 3: Cross multiply
    620,699.40x = 931,049.10 × 246,722.40
  4. Step 4: Simplify right side
    620,699.40x = 229,710,668,469.84
  5. Step 5: Solve for x
    x = 229,710,668,469.84/620,699.40
  6. Step 6: Final answer
    x = 370,083.60

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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.