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Finding the Fourth Proportional to 917,157, 1,265,676.66 and 514,749

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Solution

The fourth proportional to 917,157, 1,265,676.66 and 514,749 is: 710,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,157 : 1,265,676.66 = 514,749 : x
  2. Step 2: Convert to fraction form
    917,157/1,265,676.66 = 514,749/x
  3. Step 3: Cross multiply
    917,157x = 1,265,676.66 × 514,749
  4. Step 4: Simplify right side
    917,157x = 651,505,795,058.34
  5. Step 5: Solve for x
    x = 651,505,795,058.34/917,157
  6. Step 6: Final answer
    x = 710,353.62

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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.