Home / 656,961.40-985,442.10-550,673.20

Finding the Fourth Proportional to 656,961.40, 985,442.10 and 550,673.20

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Solution

The fourth proportional to 656,961.40, 985,442.10 and 550,673.20 is: 826,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,961.40 : 985,442.10 = 550,673.20 : x
  2. Step 2: Convert to fraction form
    656,961.40/985,442.10 = 550,673.20/x
  3. Step 3: Cross multiply
    656,961.40x = 985,442.10 × 550,673.20
  4. Step 4: Simplify right side
    656,961.40x = 542,656,554,621.72
  5. Step 5: Solve for x
    x = 542,656,554,621.72/656,961.40
  6. Step 6: Final answer
    x = 826,009.80

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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.