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Finding the Fourth Proportional to 392,045.60, 587,193.60 and 302,597.30

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Solution

The fourth proportional to 392,045.60, 587,193.60 and 302,597.30 is: 453,220.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,045.60 : 587,193.60 = 302,597.30 : x
  2. Step 2: Convert to fraction form
    392,045.60/587,193.60 = 302,597.30/x
  3. Step 3: Cross multiply
    392,045.60x = 587,193.60 × 302,597.30
  4. Step 4: Simplify right side
    392,045.60x = 177,683,197,937.28
  5. Step 5: Solve for x
    x = 177,683,197,937.28/392,045.60
  6. Step 6: Final answer
    x = 453,220.74

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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.