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Finding the Fourth Proportional to 573,114.18, 790,861.41 and 318,450.18

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Solution

The fourth proportional to 573,114.18, 790,861.41 and 318,450.18 is: 439,441.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,114.18 : 790,861.41 = 318,450.18 : x
  2. Step 2: Convert to fraction form
    573,114.18/790,861.41 = 318,450.18/x
  3. Step 3: Cross multiply
    573,114.18x = 790,861.41 × 318,450.18
  4. Step 4: Simplify right side
    573,114.18x = 251,849,958,369.55
  5. Step 5: Solve for x
    x = 251,849,958,369.55/573,114.18
  6. Step 6: Final answer
    x = 439,441.16

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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.