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Finding the Fourth Proportional to 875,495.70, 1,207,978.29 and 531,324

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Solution

The fourth proportional to 875,495.70, 1,207,978.29 and 531,324 is: 733,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,495.70 : 1,207,978.29 = 531,324 : x
  2. Step 2: Convert to fraction form
    875,495.70/1,207,978.29 = 531,324/x
  3. Step 3: Cross multiply
    875,495.70x = 1,207,978.29 × 531,324
  4. Step 4: Simplify right side
    875,495.70x = 641,827,856,955.96
  5. Step 5: Solve for x
    x = 641,827,856,955.96/875,495.70
  6. Step 6: Final answer
    x = 733,102.24

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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.