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Finding the Fourth Proportional to 911,247.42, 1,257,516.42 and 503,377.32

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Solution

The fourth proportional to 911,247.42, 1,257,516.42 and 503,377.32 is: 694,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,247.42 : 1,257,516.42 = 503,377.32 : x
  2. Step 2: Convert to fraction form
    911,247.42/1,257,516.42 = 503,377.32/x
  3. Step 3: Cross multiply
    911,247.42x = 1,257,516.42 × 503,377.32
  4. Step 4: Simplify right side
    911,247.42x = 633,005,245,355.59
  5. Step 5: Solve for x
    x = 633,005,245,355.59/911,247.42
  6. Step 6: Final answer
    x = 694,657.93

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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.