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Finding the Fourth Proportional to 525,722.60, 788,583.90 and 170,748.20

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Solution

The fourth proportional to 525,722.60, 788,583.90 and 170,748.20 is: 256,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,722.60 : 788,583.90 = 170,748.20 : x
  2. Step 2: Convert to fraction form
    525,722.60/788,583.90 = 170,748.20/x
  3. Step 3: Cross multiply
    525,722.60x = 788,583.90 × 170,748.20
  4. Step 4: Simplify right side
    525,722.60x = 134,649,281,473.98
  5. Step 5: Solve for x
    x = 134,649,281,473.98/525,722.60
  6. Step 6: Final answer
    x = 256,122.30

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Double scale
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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.