Home / 869,253.70-1,303,880.55-659,301.70

Finding the Fourth Proportional to 869,253.70, 1,303,880.55 and 659,301.70

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Solution

The fourth proportional to 869,253.70, 1,303,880.55 and 659,301.70 is: 988,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,253.70 : 1,303,880.55 = 659,301.70 : x
  2. Step 2: Convert to fraction form
    869,253.70/1,303,880.55 = 659,301.70/x
  3. Step 3: Cross multiply
    869,253.70x = 1,303,880.55 × 659,301.70
  4. Step 4: Simplify right side
    869,253.70x = 859,650,663,211.94
  5. Step 5: Solve for x
    x = 859,650,663,211.94/869,253.70
  6. Step 6: Final answer
    x = 988,952.55

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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.