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Finding the Fourth Proportional to 540,909.02, 746,404.35 and 299,186.39

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Solution

The fourth proportional to 540,909.02, 746,404.35 and 299,186.39 is: 412,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,909.02 : 746,404.35 = 299,186.39 : x
  2. Step 2: Convert to fraction form
    540,909.02/746,404.35 = 299,186.39/x
  3. Step 3: Cross multiply
    540,909.02x = 746,404.35 × 299,186.39
  4. Step 4: Simplify right side
    540,909.02x = 223,314,022,956.80
  5. Step 5: Solve for x
    x = 223,314,022,956.80/540,909.02
  6. Step 6: Final answer
    x = 412,849.51

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Double scale
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Similar ratio
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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.