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Finding the Fourth Proportional to 621,738.90, 932,608.35 and 621,738.90

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Solution

The fourth proportional to 621,738.90, 932,608.35 and 621,738.90 is: 932,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,738.90 : 932,608.35 = 621,738.90 : x
  2. Step 2: Convert to fraction form
    621,738.90/932,608.35 = 621,738.90/x
  3. Step 3: Cross multiply
    621,738.90x = 932,608.35 × 621,738.90
  4. Step 4: Simplify right side
    621,738.90x = 579,838,889,659.82
  5. Step 5: Solve for x
    x = 579,838,889,659.82/621,738.90
  6. Step 6: Final answer
    x = 932,608.35

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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.