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Finding the Fourth Proportional to 624,341.93, 861,499.18 and 379,199.12

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Solution

The fourth proportional to 624,341.93, 861,499.18 and 379,199.12 is: 523,238.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,341.93 : 861,499.18 = 379,199.12 : x
  2. Step 2: Convert to fraction form
    624,341.93/861,499.18 = 379,199.12/x
  3. Step 3: Cross multiply
    624,341.93x = 861,499.18 × 379,199.12
  4. Step 4: Simplify right side
    624,341.93x = 326,679,727,834.98
  5. Step 5: Solve for x
    x = 326,679,727,834.98/624,341.93
  6. Step 6: Final answer
    x = 523,238.49

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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.