Home / 923,000.20-1,384,500.30-655,311.40

Finding the Fourth Proportional to 923,000.20, 1,384,500.30 and 655,311.40

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Solution

The fourth proportional to 923,000.20, 1,384,500.30 and 655,311.40 is: 982,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,000.20 : 1,384,500.30 = 655,311.40 : x
  2. Step 2: Convert to fraction form
    923,000.20/1,384,500.30 = 655,311.40/x
  3. Step 3: Cross multiply
    923,000.20x = 1,384,500.30 × 655,311.40
  4. Step 4: Simplify right side
    923,000.20x = 907,278,829,893.42
  5. Step 5: Solve for x
    x = 907,278,829,893.42/923,000.20
  6. Step 6: Final answer
    x = 982,967.10

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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.