Home / 685,532.16-1,028,160-186,831.36

Finding the Fourth Proportional to 685,532.16, 1,028,160 and 186,831.36

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Solution

The fourth proportional to 685,532.16, 1,028,160 and 186,831.36 is: 280,209.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,532.16 : 1,028,160 = 186,831.36 : x
  2. Step 2: Convert to fraction form
    685,532.16/1,028,160 = 186,831.36/x
  3. Step 3: Cross multiply
    685,532.16x = 1,028,160 × 186,831.36
  4. Step 4: Simplify right side
    685,532.16x = 192,092,531,097.60
  5. Step 5: Solve for x
    x = 192,092,531,097.60/685,532.16
  6. Step 6: Final answer
    x = 280,209.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.