Home / 1,186,344.20-1,637,134.77-642,475.57

Finding the Fourth Proportional to 1,186,344.20, 1,637,134.77 and 642,475.57

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Solution

The fourth proportional to 1,186,344.20, 1,637,134.77 and 642,475.57 is: 886,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,344.20 : 1,637,134.77 = 642,475.57 : x
  2. Step 2: Convert to fraction form
    1,186,344.20/1,637,134.77 = 642,475.57/x
  3. Step 3: Cross multiply
    1,186,344.20x = 1,637,134.77 × 642,475.57
  4. Step 4: Simplify right side
    1,186,344.20x = 1,051,819,094,522.57
  5. Step 5: Solve for x
    x = 1,051,819,094,522.57/1,186,344.20
  6. Step 6: Final answer
    x = 886,605.33

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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.