Home / 859,620.61-1,186,228.11-515,284.24

Finding the Fourth Proportional to 859,620.61, 1,186,228.11 and 515,284.24

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Solution

The fourth proportional to 859,620.61, 1,186,228.11 and 515,284.24 is: 711,063.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,620.61 : 1,186,228.11 = 515,284.24 : x
  2. Step 2: Convert to fraction form
    859,620.61/1,186,228.11 = 515,284.24/x
  3. Step 3: Cross multiply
    859,620.61x = 1,186,228.11 × 515,284.24
  4. Step 4: Simplify right side
    859,620.61x = 611,244,650,127.99
  5. Step 5: Solve for x
    x = 611,244,650,127.99/859,620.61
  6. Step 6: Final answer
    x = 711,063.28

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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.