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Finding the Fourth Proportional to 525,765.12, 788,763.24 and 170,816.64

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Solution

The fourth proportional to 525,765.12, 788,763.24 and 170,816.64 is: 256,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,765.12 : 788,763.24 = 170,816.64 : x
  2. Step 2: Convert to fraction form
    525,765.12/788,763.24 = 170,816.64/x
  3. Step 3: Cross multiply
    525,765.12x = 788,763.24 × 170,816.64
  4. Step 4: Simplify right side
    525,765.12x = 134,733,886,412.31
  5. Step 5: Solve for x
    x = 134,733,886,412.31/525,765.12
  6. Step 6: Final answer
    x = 256,262.50

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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.