Home / 656,821.90-985,232.85-236,140.30

Finding the Fourth Proportional to 656,821.90, 985,232.85 and 236,140.30

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Solution

The fourth proportional to 656,821.90, 985,232.85 and 236,140.30 is: 354,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,821.90 : 985,232.85 = 236,140.30 : x
  2. Step 2: Convert to fraction form
    656,821.90/985,232.85 = 236,140.30/x
  3. Step 3: Cross multiply
    656,821.90x = 985,232.85 × 236,140.30
  4. Step 4: Simplify right side
    656,821.90x = 232,653,180,768.86
  5. Step 5: Solve for x
    x = 232,653,180,768.86/656,821.90
  6. Step 6: Final answer
    x = 354,210.45

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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.