Home / 971,401.70-1,457,102.55-654,140.90

Finding the Fourth Proportional to 971,401.70, 1,457,102.55 and 654,140.90

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Solution

The fourth proportional to 971,401.70, 1,457,102.55 and 654,140.90 is: 981,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,401.70 : 1,457,102.55 = 654,140.90 : x
  2. Step 2: Convert to fraction form
    971,401.70/1,457,102.55 = 654,140.90/x
  3. Step 3: Cross multiply
    971,401.70x = 1,457,102.55 × 654,140.90
  4. Step 4: Simplify right side
    971,401.70x = 953,150,373,449.30
  5. Step 5: Solve for x
    x = 953,150,373,449.30/971,401.70
  6. Step 6: Final answer
    x = 981,211.35

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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.