Home / 971,340.30-1,457,010.45-261,440.10

Finding the Fourth Proportional to 971,340.30, 1,457,010.45 and 261,440.10

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Solution

The fourth proportional to 971,340.30, 1,457,010.45 and 261,440.10 is: 392,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,340.30 : 1,457,010.45 = 261,440.10 : x
  2. Step 2: Convert to fraction form
    971,340.30/1,457,010.45 = 261,440.10/x
  3. Step 3: Cross multiply
    971,340.30x = 1,457,010.45 × 261,440.10
  4. Step 4: Simplify right side
    971,340.30x = 380,920,957,749.05
  5. Step 5: Solve for x
    x = 380,920,957,749.05/971,340.30
  6. Step 6: Final answer
    x = 392,160.15

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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.