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Finding the Fourth Proportional to 661,530.78, 911,946.16 and 467,596.33

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Solution

The fourth proportional to 661,530.78, 911,946.16 and 467,596.33 is: 644,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,530.78 : 911,946.16 = 467,596.33 : x
  2. Step 2: Convert to fraction form
    661,530.78/911,946.16 = 467,596.33/x
  3. Step 3: Cross multiply
    661,530.78x = 911,946.16 × 467,596.33
  4. Step 4: Simplify right side
    661,530.78x = 426,422,677,573.59
  5. Step 5: Solve for x
    x = 426,422,677,573.59/661,530.78
  6. Step 6: Final answer
    x = 644,599.90

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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.