Home / 657,321.76-986,096.04-208,035.28

Finding the Fourth Proportional to 657,321.76, 986,096.04 and 208,035.28

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Solution

The fourth proportional to 657,321.76, 986,096.04 and 208,035.28 is: 312,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,321.76 : 986,096.04 = 208,035.28 : x
  2. Step 2: Convert to fraction form
    657,321.76/986,096.04 = 208,035.28/x
  3. Step 3: Cross multiply
    657,321.76x = 986,096.04 × 208,035.28
  4. Step 4: Simplify right side
    657,321.76x = 205,142,765,788.29
  5. Step 5: Solve for x
    x = 205,142,765,788.29/657,321.76
  6. Step 6: Final answer
    x = 312,088.81

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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.