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Finding the Fourth Proportional to 496,296.80, 744,445.20 and 141,322.40

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Solution

The fourth proportional to 496,296.80, 744,445.20 and 141,322.40 is: 211,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,296.80 : 744,445.20 = 141,322.40 : x
  2. Step 2: Convert to fraction form
    496,296.80/744,445.20 = 141,322.40/x
  3. Step 3: Cross multiply
    496,296.80x = 744,445.20 × 141,322.40
  4. Step 4: Simplify right side
    496,296.80x = 105,206,782,332.48
  5. Step 5: Solve for x
    x = 105,206,782,332.48/496,296.80
  6. Step 6: Final answer
    x = 211,983.60

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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.