Home / 395,205.50-592,902.56-128,966.51

Finding the Fourth Proportional to 395,205.50, 592,902.56 and 128,966.51

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Solution

The fourth proportional to 395,205.50, 592,902.56 and 128,966.51 is: 193,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,205.50 : 592,902.56 = 128,966.51 : x
  2. Step 2: Convert to fraction form
    395,205.50/592,902.56 = 128,966.51/x
  3. Step 3: Cross multiply
    395,205.50x = 592,902.56 × 128,966.51
  4. Step 4: Simplify right side
    395,205.50x = 76,464,575,737.94
  5. Step 5: Solve for x
    x = 76,464,575,737.94/395,205.50
  6. Step 6: Final answer
    x = 193,480.54

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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.