Home / 927,904.70-1,391,857.05-455,512.70

Finding the Fourth Proportional to 927,904.70, 1,391,857.05 and 455,512.70

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Solution

The fourth proportional to 927,904.70, 1,391,857.05 and 455,512.70 is: 683,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,904.70 : 1,391,857.05 = 455,512.70 : x
  2. Step 2: Convert to fraction form
    927,904.70/1,391,857.05 = 455,512.70/x
  3. Step 3: Cross multiply
    927,904.70x = 1,391,857.05 × 455,512.70
  4. Step 4: Simplify right side
    927,904.70x = 634,008,562,859.54
  5. Step 5: Solve for x
    x = 634,008,562,859.54/927,904.70
  6. Step 6: Final answer
    x = 683,269.05

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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.