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Finding the Fourth Proportional to 616,255.92, 850,438.80 and 361,611.36

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Solution

The fourth proportional to 616,255.92, 850,438.80 and 361,611.36 is: 499,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,255.92 : 850,438.80 = 361,611.36 : x
  2. Step 2: Convert to fraction form
    616,255.92/850,438.80 = 361,611.36/x
  3. Step 3: Cross multiply
    616,255.92x = 850,438.80 × 361,611.36
  4. Step 4: Simplify right side
    616,255.92x = 307,528,331,064.77
  5. Step 5: Solve for x
    x = 307,528,331,064.77/616,255.92
  6. Step 6: Final answer
    x = 499,026.98

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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.