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Finding the Fourth Proportional to 560,087.55, 840,131.33 and 347,025.15

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Solution

The fourth proportional to 560,087.55, 840,131.33 and 347,025.15 is: 520,537.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,087.55 : 840,131.33 = 347,025.15 : x
  2. Step 2: Convert to fraction form
    560,087.55/840,131.33 = 347,025.15/x
  3. Step 3: Cross multiply
    560,087.55x = 840,131.33 × 347,025.15
  4. Step 4: Simplify right side
    560,087.55x = 291,546,699,077.82
  5. Step 5: Solve for x
    x = 291,546,699,077.82/560,087.55
  6. Step 6: Final answer
    x = 520,537.73

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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.