Home / 1,257,523,667.28-1,735,332,136.20-685,294,568.44

Finding the Fourth Proportional to 1,257,523,667.28, 1,735,332,136.20 and 685,294,568.44

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Solution

The fourth proportional to 1,257,523,667.28, 1,735,332,136.20 and 685,294,568.44 is: 945,678,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,523,667.28 : 1,735,332,136.20 = 685,294,568.44 : x
  2. Step 2: Convert to fraction form
    1,257,523,667.28/1,735,332,136.20 = 685,294,568.44/x
  3. Step 3: Cross multiply
    1,257,523,667.28x = 1,735,332,136.20 × 685,294,568.44
  4. Step 4: Simplify right side
    1,257,523,667.28x = 1,189,213,687,372,903,936
  5. Step 5: Solve for x
    x = 1,189,213,687,372,903,936/1,257,523,667.28
  6. Step 6: Final answer
    x = 945,678,970.75

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Double scale
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1.5x scale

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.