Home / 395,207.47-592,905.52-128,968.47

Finding the Fourth Proportional to 395,207.47, 592,905.52 and 128,968.47

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Solution

The fourth proportional to 395,207.47, 592,905.52 and 128,968.47 is: 193,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,207.47 : 592,905.52 = 128,968.47 : x
  2. Step 2: Convert to fraction form
    395,207.47/592,905.52 = 128,968.47/x
  3. Step 3: Cross multiply
    395,207.47x = 592,905.52 × 128,968.47
  4. Step 4: Simplify right side
    395,207.47x = 76,466,117,930.17
  5. Step 5: Solve for x
    x = 76,466,117,930.17/395,207.47
  6. Step 6: Final answer
    x = 193,483.48

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Similar ratio
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1.5x scale

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.