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Finding the Fourth Proportional to 656,837.80, 985,256.70 and 550,549.60

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Solution

The fourth proportional to 656,837.80, 985,256.70 and 550,549.60 is: 825,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,837.80 : 985,256.70 = 550,549.60 : x
  2. Step 2: Convert to fraction form
    656,837.80/985,256.70 = 550,549.60/x
  3. Step 3: Cross multiply
    656,837.80x = 985,256.70 × 550,549.60
  4. Step 4: Simplify right side
    656,837.80x = 542,432,682,082.32
  5. Step 5: Solve for x
    x = 542,432,682,082.32/656,837.80
  6. Step 6: Final answer
    x = 825,824.40

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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.