Home / 905,575.70-1,358,363.55-407,911.70

Finding the Fourth Proportional to 905,575.70, 1,358,363.55 and 407,911.70

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Solution

The fourth proportional to 905,575.70, 1,358,363.55 and 407,911.70 is: 611,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,575.70 : 1,358,363.55 = 407,911.70 : x
  2. Step 2: Convert to fraction form
    905,575.70/1,358,363.55 = 407,911.70/x
  3. Step 3: Cross multiply
    905,575.70x = 1,358,363.55 × 407,911.70
  4. Step 4: Simplify right side
    905,575.70x = 554,092,384,898.54
  5. Step 5: Solve for x
    x = 554,092,384,898.54/905,575.70
  6. Step 6: Final answer
    x = 611,867.55

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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.