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Finding the Fourth Proportional to 303,954.60, 455,888.70 and 93,613.80

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Solution

The fourth proportional to 303,954.60, 455,888.70 and 93,613.80 is: 140,407.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,954.60 : 455,888.70 = 93,613.80 : x
  2. Step 2: Convert to fraction form
    303,954.60/455,888.70 = 93,613.80/x
  3. Step 3: Cross multiply
    303,954.60x = 455,888.70 × 93,613.80
  4. Step 4: Simplify right side
    303,954.60x = 42,677,473,584.06
  5. Step 5: Solve for x
    x = 42,677,473,584.06/303,954.60
  6. Step 6: Final answer
    x = 140,407.39

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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.