Home / 822,382.16-1,134,543.45-640,778.73

Finding the Fourth Proportional to 822,382.16, 1,134,543.45 and 640,778.73

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Solution

The fourth proportional to 822,382.16, 1,134,543.45 and 640,778.73 is: 884,006.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,382.16 : 1,134,543.45 = 640,778.73 : x
  2. Step 2: Convert to fraction form
    822,382.16/1,134,543.45 = 640,778.73/x
  3. Step 3: Cross multiply
    822,382.16x = 1,134,543.45 × 640,778.73
  4. Step 4: Simplify right side
    822,382.16x = 726,991,311,020.82
  5. Step 5: Solve for x
    x = 726,991,311,020.82/822,382.16
  6. Step 6: Final answer
    x = 884,006.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.