Home / 1,186,656.45-1,637,593.76-642,792.24

Finding the Fourth Proportional to 1,186,656.45, 1,637,593.76 and 642,792.24

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Solution

The fourth proportional to 1,186,656.45, 1,637,593.76 and 642,792.24 is: 887,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,656.45 : 1,637,593.76 = 642,792.24 : x
  2. Step 2: Convert to fraction form
    1,186,656.45/1,637,593.76 = 642,792.24/x
  3. Step 3: Cross multiply
    1,186,656.45x = 1,637,593.76 × 642,792.24
  4. Step 4: Simplify right side
    1,186,656.45x = 1,052,632,562,807.40
  5. Step 5: Solve for x
    x = 1,052,632,562,807.40/1,186,656.45
  6. Step 6: Final answer
    x = 887,057.55

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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.