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Finding the Fourth Proportional to 661,793.92, 913,277.76 and 359,987.84

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Solution

The fourth proportional to 661,793.92, 913,277.76 and 359,987.84 is: 496,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,793.92 : 913,277.76 = 359,987.84 : x
  2. Step 2: Convert to fraction form
    661,793.92/913,277.76 = 359,987.84/x
  3. Step 3: Cross multiply
    661,793.92x = 913,277.76 × 359,987.84
  4. Step 4: Simplify right side
    661,793.92x = 328,768,888,142.44
  5. Step 5: Solve for x
    x = 328,768,888,142.44/661,793.92
  6. Step 6: Final answer
    x = 496,784.39

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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.