Home / 1,186,543.66-1,637,420.38-642,666.73

Finding the Fourth Proportional to 1,186,543.66, 1,637,420.38 and 642,666.73

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Solution

The fourth proportional to 1,186,543.66, 1,637,420.38 and 642,666.73 is: 886,874.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,543.66 : 1,637,420.38 = 642,666.73 : x
  2. Step 2: Convert to fraction form
    1,186,543.66/1,637,420.38 = 642,666.73/x
  3. Step 3: Cross multiply
    1,186,543.66x = 1,637,420.38 × 642,666.73
  4. Step 4: Simplify right side
    1,186,543.66x = 1,052,315,601,249.96
  5. Step 5: Solve for x
    x = 1,052,315,601,249.96/1,186,543.66
  6. Step 6: Final answer
    x = 886,874.74

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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.