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Finding the Fourth Proportional to 447,193.79, 617,071.29 and 302,314.73

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Solution

The fourth proportional to 447,193.79, 617,071.29 and 302,314.73 is: 417,156.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,193.79 : 617,071.29 = 302,314.73 : x
  2. Step 2: Convert to fraction form
    447,193.79/617,071.29 = 302,314.73/x
  3. Step 3: Cross multiply
    447,193.79x = 617,071.29 × 302,314.73
  4. Step 4: Simplify right side
    447,193.79x = 186,549,737,341.75
  5. Step 5: Solve for x
    x = 186,549,737,341.75/447,193.79
  6. Step 6: Final answer
    x = 417,156.37

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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.