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Finding the Fourth Proportional to 656,135.64, 984,203.51 and 157,499.64

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Solution

The fourth proportional to 656,135.64, 984,203.51 and 157,499.64 is: 236,249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,135.64 : 984,203.51 = 157,499.64 : x
  2. Step 2: Convert to fraction form
    656,135.64/984,203.51 = 157,499.64/x
  3. Step 3: Cross multiply
    656,135.64x = 984,203.51 × 157,499.64
  4. Step 4: Simplify right side
    656,135.64x = 155,011,697,724.24
  5. Step 5: Solve for x
    x = 155,011,697,724.24/656,135.64
  6. Step 6: Final answer
    x = 236,249.47

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Half scale
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Double scale
Find fourth proportional to 656,136.64, 984,205.01 and 157,500.64
Similar ratio
Find fourth proportional to 984,203.46, 1,476,305.26 and 236,249.46
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.