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Finding the Fourth Proportional to 453,187.78, 625,385.91 and 249,238.49

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Solution

The fourth proportional to 453,187.78, 625,385.91 and 249,238.49 is: 343,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,187.78 : 625,385.91 = 249,238.49 : x
  2. Step 2: Convert to fraction form
    453,187.78/625,385.91 = 249,238.49/x
  3. Step 3: Cross multiply
    453,187.78x = 625,385.91 × 249,238.49
  4. Step 4: Simplify right side
    453,187.78x = 155,870,237,683.39
  5. Step 5: Solve for x
    x = 155,870,237,683.39/453,187.78
  6. Step 6: Final answer
    x = 343,941.84

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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.