Home / 1,186,416.77-1,637,253.72-642,552.23

Finding the Fourth Proportional to 1,186,416.77, 1,637,253.72 and 642,552.23

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Solution

The fourth proportional to 1,186,416.77, 1,637,253.72 and 642,552.23 is: 886,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,416.77 : 1,637,253.72 = 642,552.23 : x
  2. Step 2: Convert to fraction form
    1,186,416.77/1,637,253.72 = 642,552.23/x
  3. Step 3: Cross multiply
    1,186,416.77x = 1,637,253.72 × 642,552.23
  4. Step 4: Simplify right side
    1,186,416.77x = 1,052,021,028,861.80
  5. Step 5: Solve for x
    x = 1,052,021,028,861.80/1,186,416.77
  6. Step 6: Final answer
    x = 886,721.31

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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.