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Finding the Fourth Proportional to 525,713.70, 788,570.55 and 170,763.60

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Solution

The fourth proportional to 525,713.70, 788,570.55 and 170,763.60 is: 256,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,713.70 : 788,570.55 = 170,763.60 : x
  2. Step 2: Convert to fraction form
    525,713.70/788,570.55 = 170,763.60/x
  3. Step 3: Cross multiply
    525,713.70x = 788,570.55 × 170,763.60
  4. Step 4: Simplify right side
    525,713.70x = 134,659,145,971.98
  5. Step 5: Solve for x
    x = 134,659,145,971.98/525,713.70
  6. Step 6: Final answer
    x = 256,145.40

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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.