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Finding the Fourth Proportional to 525,768.39, 788,652.59 and 126,409.17

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Solution

The fourth proportional to 525,768.39, 788,652.59 and 126,409.17 is: 189,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,768.39 : 788,652.59 = 126,409.17 : x
  2. Step 2: Convert to fraction form
    525,768.39/788,652.59 = 126,409.17/x
  3. Step 3: Cross multiply
    525,768.39x = 788,652.59 × 126,409.17
  4. Step 4: Simplify right side
    525,768.39x = 99,692,918,851.81
  5. Step 5: Solve for x
    x = 99,692,918,851.81/525,768.39
  6. Step 6: Final answer
    x = 189,613.75

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Similar ratio
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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.