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Finding the Fourth Proportional to 525,393.68, 788,205.76 and 170,443.60

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Solution

The fourth proportional to 525,393.68, 788,205.76 and 170,443.60 is: 255,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,393.68 : 788,205.76 = 170,443.60 : x
  2. Step 2: Convert to fraction form
    525,393.68/788,205.76 = 170,443.60/x
  3. Step 3: Cross multiply
    525,393.68x = 788,205.76 × 170,443.60
  4. Step 4: Simplify right side
    525,393.68x = 134,344,627,275.14
  5. Step 5: Solve for x
    x = 134,344,627,275.14/525,393.68
  6. Step 6: Final answer
    x = 255,702.79

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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.