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Finding the Fourth Proportional to 917,191.76, 1,265,655.24 and 514,706

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Solution

The fourth proportional to 917,191.76, 1,265,655.24 and 514,706 is: 710,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,191.76 : 1,265,655.24 = 514,706 : x
  2. Step 2: Convert to fraction form
    917,191.76/1,265,655.24 = 514,706/x
  3. Step 3: Cross multiply
    917,191.76x = 1,265,655.24 × 514,706
  4. Step 4: Simplify right side
    917,191.76x = 651,440,345,959.44
  5. Step 5: Solve for x
    x = 651,440,345,959.44/917,191.76
  6. Step 6: Final answer
    x = 710,255.34

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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.