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Finding the Fourth Proportional to 656,193.90, 984,290.85 and 235,415.10

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Solution

The fourth proportional to 656,193.90, 984,290.85 and 235,415.10 is: 353,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,193.90 : 984,290.85 = 235,415.10 : x
  2. Step 2: Convert to fraction form
    656,193.90/984,290.85 = 235,415.10/x
  3. Step 3: Cross multiply
    656,193.90x = 984,290.85 × 235,415.10
  4. Step 4: Simplify right side
    656,193.90x = 231,716,928,881.84
  5. Step 5: Solve for x
    x = 231,716,928,881.84/656,193.90
  6. Step 6: Final answer
    x = 353,122.65

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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.