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Finding the Fourth Proportional to 656,374.60, 984,561.90 and 157,738.60

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Solution

The fourth proportional to 656,374.60, 984,561.90 and 157,738.60 is: 236,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,374.60 : 984,561.90 = 157,738.60 : x
  2. Step 2: Convert to fraction form
    656,374.60/984,561.90 = 157,738.60/x
  3. Step 3: Cross multiply
    656,374.60x = 984,561.90 × 157,738.60
  4. Step 4: Simplify right side
    656,374.60x = 155,303,415,719.34
  5. Step 5: Solve for x
    x = 155,303,415,719.34/656,374.60
  6. Step 6: Final answer
    x = 236,607.90

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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.