Home / 656,743.40-985,115.10-507,201.81

Finding the Fourth Proportional to 656,743.40, 985,115.10 and 507,201.81

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Solution

The fourth proportional to 656,743.40, 985,115.10 and 507,201.81 is: 760,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,743.40 : 985,115.10 = 507,201.81 : x
  2. Step 2: Convert to fraction form
    656,743.40/985,115.10 = 507,201.81/x
  3. Step 3: Cross multiply
    656,743.40x = 985,115.10 × 507,201.81
  4. Step 4: Simplify right side
    656,743.40x = 499,652,154,316.75
  5. Step 5: Solve for x
    x = 499,652,154,316.75/656,743.40
  6. Step 6: Final answer
    x = 760,802.71

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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.