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Finding the Fourth Proportional to 302,790.76, 454,186.21 and 207,732.80

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Solution

The fourth proportional to 302,790.76, 454,186.21 and 207,732.80 is: 311,599.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,790.76 : 454,186.21 = 207,732.80 : x
  2. Step 2: Convert to fraction form
    302,790.76/454,186.21 = 207,732.80/x
  3. Step 3: Cross multiply
    302,790.76x = 454,186.21 × 207,732.80
  4. Step 4: Simplify right side
    302,790.76x = 94,349,374,714.57
  5. Step 5: Solve for x
    x = 94,349,374,714.57/302,790.76
  6. Step 6: Final answer
    x = 311,599.26

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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.