Home / 923,930.96-1,385,655.86-391,177.76

Finding the Fourth Proportional to 923,930.96, 1,385,655.86 and 391,177.76

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Solution

The fourth proportional to 923,930.96, 1,385,655.86 and 391,177.76 is: 586,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,930.96 : 1,385,655.86 = 391,177.76 : x
  2. Step 2: Convert to fraction form
    923,930.96/1,385,655.86 = 391,177.76/x
  3. Step 3: Cross multiply
    923,930.96x = 1,385,655.86 × 391,177.76
  4. Step 4: Simplify right side
    923,930.96x = 542,037,749,495.34
  5. Step 5: Solve for x
    x = 542,037,749,495.34/923,930.96
  6. Step 6: Final answer
    x = 586,664.78

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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.