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Finding the Fourth Proportional to 911,594.56, 1,257,995.64 and 503,724.48

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Solution

The fourth proportional to 911,594.56, 1,257,995.64 and 503,724.48 is: 695,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,594.56 : 1,257,995.64 = 503,724.48 : x
  2. Step 2: Convert to fraction form
    911,594.56/1,257,995.64 = 503,724.48/x
  3. Step 3: Cross multiply
    911,594.56x = 1,257,995.64 × 503,724.48
  4. Step 4: Simplify right side
    911,594.56x = 633,683,199,601.27
  5. Step 5: Solve for x
    x = 633,683,199,601.27/911,594.56
  6. Step 6: Final answer
    x = 695,137.10

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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.