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Finding the Fourth Proportional to 571,128.69, 788,515.86 and 367,533.37

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Solution

The fourth proportional to 571,128.69, 788,515.86 and 367,533.37 is: 507,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,128.69 : 788,515.86 = 367,533.37 : x
  2. Step 2: Convert to fraction form
    571,128.69/788,515.86 = 367,533.37/x
  3. Step 3: Cross multiply
    571,128.69x = 788,515.86 × 367,533.37
  4. Step 4: Simplify right side
    571,128.69x = 289,805,891,324.25
  5. Step 5: Solve for x
    x = 289,805,891,324.25/571,128.69
  6. Step 6: Final answer
    x = 507,426.60

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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.