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Finding the Fourth Proportional to 497,388.22, 686,709.28 and 352,501.26

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Solution

The fourth proportional to 497,388.22, 686,709.28 and 352,501.26 is: 486,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,388.22 : 686,709.28 = 352,501.26 : x
  2. Step 2: Convert to fraction form
    497,388.22/686,709.28 = 352,501.26/x
  3. Step 3: Cross multiply
    497,388.22x = 686,709.28 × 352,501.26
  4. Step 4: Simplify right side
    497,388.22x = 242,065,886,453.69
  5. Step 5: Solve for x
    x = 242,065,886,453.69/497,388.22
  6. Step 6: Final answer
    x = 486,673.94

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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.