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Finding the Fourth Proportional to 1,416,475.92, 1,954,737 and 771,896.40

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Solution

The fourth proportional to 1,416,475.92, 1,954,737 and 771,896.40 is: 1,065,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,475.92 : 1,954,737 = 771,896.40 : x
  2. Step 2: Convert to fraction form
    1,416,475.92/1,954,737 = 771,896.40/x
  3. Step 3: Cross multiply
    1,416,475.92x = 1,954,737 × 771,896.40
  4. Step 4: Simplify right side
    1,416,475.92x = 1,508,854,453,246.80
  5. Step 5: Solve for x
    x = 1,508,854,453,246.80/1,416,475.92
  6. Step 6: Final answer
    x = 1,065,217.16

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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.