Home / 1,186,446.66-1,637,288.21-642,570

Finding the Fourth Proportional to 1,186,446.66, 1,637,288.21 and 642,570

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Solution

The fourth proportional to 1,186,446.66, 1,637,288.21 and 642,570 is: 886,742.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,446.66 : 1,637,288.21 = 642,570 : x
  2. Step 2: Convert to fraction form
    1,186,446.66/1,637,288.21 = 642,570/x
  3. Step 3: Cross multiply
    1,186,446.66x = 1,637,288.21 × 642,570
  4. Step 4: Simplify right side
    1,186,446.66x = 1,052,072,281,886.85
  5. Step 5: Solve for x
    x = 1,052,072,281,886.85/1,186,446.66
  6. Step 6: Final answer
    x = 886,742.17

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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.