Home / 656,741.90-985,112.84-507,200.30

Finding the Fourth Proportional to 656,741.90, 985,112.84 and 507,200.30

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Solution

The fourth proportional to 656,741.90, 985,112.84 and 507,200.30 is: 760,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,741.90 : 985,112.84 = 507,200.30 : x
  2. Step 2: Convert to fraction form
    656,741.90/985,112.84 = 507,200.30/x
  3. Step 3: Cross multiply
    656,741.90x = 985,112.84 × 507,200.30
  4. Step 4: Simplify right side
    656,741.90x = 499,649,531,712.64
  5. Step 5: Solve for x
    x = 499,649,531,712.64/656,741.90
  6. Step 6: Final answer
    x = 760,800.45

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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.