Home / 890,483.70-1,336,600.35-441,711.30

Finding the Fourth Proportional to 890,483.70, 1,336,600.35 and 441,711.30

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Solution

The fourth proportional to 890,483.70, 1,336,600.35 and 441,711.30 is: 663,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,483.70 : 1,336,600.35 = 441,711.30 : x
  2. Step 2: Convert to fraction form
    890,483.70/1,336,600.35 = 441,711.30/x
  3. Step 3: Cross multiply
    890,483.70x = 1,336,600.35 × 441,711.30
  4. Step 4: Simplify right side
    890,483.70x = 590,391,478,178.96
  5. Step 5: Solve for x
    x = 590,391,478,178.96/890,483.70
  6. Step 6: Final answer
    x = 663,000.88

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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.