Home / 571,905.36-789,229.71-317,256.75

Finding the Fourth Proportional to 571,905.36, 789,229.71 and 317,256.75

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Solution

The fourth proportional to 571,905.36, 789,229.71 and 317,256.75 is: 437,814.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,905.36 : 789,229.71 = 317,256.75 : x
  2. Step 2: Convert to fraction form
    571,905.36/789,229.71 = 317,256.75/x
  3. Step 3: Cross multiply
    571,905.36x = 789,229.71 × 317,256.75
  4. Step 4: Simplify right side
    571,905.36x = 250,388,452,798.04
  5. Step 5: Solve for x
    x = 250,388,452,798.04/571,905.36
  6. Step 6: Final answer
    x = 437,814.49

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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.