Home / 1,185,213.30-1,635,582.96-641,337.18

Finding the Fourth Proportional to 1,185,213.30, 1,635,582.96 and 641,337.18

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Solution

The fourth proportional to 1,185,213.30, 1,635,582.96 and 641,337.18 is: 885,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,213.30 : 1,635,582.96 = 641,337.18 : x
  2. Step 2: Convert to fraction form
    1,185,213.30/1,635,582.96 = 641,337.18/x
  3. Step 3: Cross multiply
    1,185,213.30x = 1,635,582.96 × 641,337.18
  4. Step 4: Simplify right side
    1,185,213.30x = 1,048,960,163,222.45
  5. Step 5: Solve for x
    x = 1,048,960,163,222.45/1,185,213.30
  6. Step 6: Final answer
    x = 885,039.14

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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.