Home / 1,186,375.86-1,637,191.17-642,502.98

Finding the Fourth Proportional to 1,186,375.86, 1,637,191.17 and 642,502.98

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Solution

The fourth proportional to 1,186,375.86, 1,637,191.17 and 642,502.98 is: 886,650.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,375.86 : 1,637,191.17 = 642,502.98 : x
  2. Step 2: Convert to fraction form
    1,186,375.86/1,637,191.17 = 642,502.98/x
  3. Step 3: Cross multiply
    1,186,375.86x = 1,637,191.17 × 642,502.98
  4. Step 4: Simplify right side
    1,186,375.86x = 1,051,900,205,554.69
  5. Step 5: Solve for x
    x = 1,051,900,205,554.69/1,186,375.86
  6. Step 6: Final answer
    x = 886,650.04

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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.