Home / 1,186,453.86-1,637,298.12-642,577.17

Finding the Fourth Proportional to 1,186,453.86, 1,637,298.12 and 642,577.17

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Solution

The fourth proportional to 1,186,453.86, 1,637,298.12 and 642,577.17 is: 886,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,453.86 : 1,637,298.12 = 642,577.17 : x
  2. Step 2: Convert to fraction form
    1,186,453.86/1,637,298.12 = 642,577.17/x
  3. Step 3: Cross multiply
    1,186,453.86x = 1,637,298.12 × 642,577.17
  4. Step 4: Simplify right side
    1,186,453.86x = 1,052,090,392,395.92
  5. Step 5: Solve for x
    x = 1,052,090,392,395.92/1,186,453.86
  6. Step 6: Final answer
    x = 886,752.05

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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.