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Finding the Fourth Proportional to 352,646.82, 486,984.75 and 245,509.81

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Solution

The fourth proportional to 352,646.82, 486,984.75 and 245,509.81 is: 339,034.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,646.82 : 486,984.75 = 245,509.81 : x
  2. Step 2: Convert to fraction form
    352,646.82/486,984.75 = 245,509.81/x
  3. Step 3: Cross multiply
    352,646.82x = 486,984.75 × 245,509.81
  4. Step 4: Simplify right side
    352,646.82x = 119,559,533,445.40
  5. Step 5: Solve for x
    x = 119,559,533,445.40/352,646.82
  6. Step 6: Final answer
    x = 339,034.77

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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.