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Finding the Fourth Proportional to 606,959.20, 910,438.80 and 606,959.20

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Solution

The fourth proportional to 606,959.20, 910,438.80 and 606,959.20 is: 910,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,959.20 : 910,438.80 = 606,959.20 : x
  2. Step 2: Convert to fraction form
    606,959.20/910,438.80 = 606,959.20/x
  3. Step 3: Cross multiply
    606,959.20x = 910,438.80 × 606,959.20
  4. Step 4: Simplify right side
    606,959.20x = 552,599,205,696.96
  5. Step 5: Solve for x
    x = 552,599,205,696.96/606,959.20
  6. Step 6: Final answer
    x = 910,438.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.