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Finding the Fourth Proportional to 302,624.75, 417,623.40 and 173,568.20

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Solution

The fourth proportional to 302,624.75, 417,623.40 and 173,568.20 is: 239,524.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,624.75 : 417,623.40 = 173,568.20 : x
  2. Step 2: Convert to fraction form
    302,624.75/417,623.40 = 173,568.20/x
  3. Step 3: Cross multiply
    302,624.75x = 417,623.40 × 173,568.20
  4. Step 4: Simplify right side
    302,624.75x = 72,486,139,727.76
  5. Step 5: Solve for x
    x = 72,486,139,727.76/302,624.75
  6. Step 6: Final answer
    x = 239,524.82

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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.