Home / 1,185,666.63-1,778,782.91-386,949.66

Finding the Fourth Proportional to 1,185,666.63, 1,778,782.91 and 386,949.66

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Solution

The fourth proportional to 1,185,666.63, 1,778,782.91 and 386,949.66 is: 580,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,666.63 : 1,778,782.91 = 386,949.66 : x
  2. Step 2: Convert to fraction form
    1,185,666.63/1,778,782.91 = 386,949.66/x
  3. Step 3: Cross multiply
    1,185,666.63x = 1,778,782.91 × 386,949.66
  4. Step 4: Simplify right side
    1,185,666.63x = 688,299,440,303.56
  5. Step 5: Solve for x
    x = 688,299,440,303.56/1,185,666.63
  6. Step 6: Final answer
    x = 580,516.84

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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.