Home / 939,146.40-1,408,696.11-513,096.12

Finding the Fourth Proportional to 939,146.40, 1,408,696.11 and 513,096.12

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Solution

The fourth proportional to 939,146.40, 1,408,696.11 and 513,096.12 is: 769,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,146.40 : 1,408,696.11 = 513,096.12 : x
  2. Step 2: Convert to fraction form
    939,146.40/1,408,696.11 = 513,096.12/x
  3. Step 3: Cross multiply
    939,146.40x = 1,408,696.11 × 513,096.12
  4. Step 4: Simplify right side
    939,146.40x = 722,796,508,300.09
  5. Step 5: Solve for x
    x = 722,796,508,300.09/939,146.40
  6. Step 6: Final answer
    x = 769,631.35

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Double scale
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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.