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Finding the Fourth Proportional to 316,593.60, 474,890.40 and 302,596.80

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Solution

The fourth proportional to 316,593.60, 474,890.40 and 302,596.80 is: 453,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,593.60 : 474,890.40 = 302,596.80 : x
  2. Step 2: Convert to fraction form
    316,593.60/474,890.40 = 302,596.80/x
  3. Step 3: Cross multiply
    316,593.60x = 474,890.40 × 302,596.80
  4. Step 4: Simplify right side
    316,593.60x = 143,700,315,390.72
  5. Step 5: Solve for x
    x = 143,700,315,390.72/316,593.60
  6. Step 6: Final answer
    x = 453,895.20

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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.