Home / 1,025,105.40-1,537,658.10-394,039.80

Finding the Fourth Proportional to 1,025,105.40, 1,537,658.10 and 394,039.80

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Solution

The fourth proportional to 1,025,105.40, 1,537,658.10 and 394,039.80 is: 591,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,105.40 : 1,537,658.10 = 394,039.80 : x
  2. Step 2: Convert to fraction form
    1,025,105.40/1,537,658.10 = 394,039.80/x
  3. Step 3: Cross multiply
    1,025,105.40x = 1,537,658.10 × 394,039.80
  4. Step 4: Simplify right side
    1,025,105.40x = 605,898,490,192.38
  5. Step 5: Solve for x
    x = 605,898,490,192.38/1,025,105.40
  6. Step 6: Final answer
    x = 591,059.70

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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.