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Finding the Fourth Proportional to 624,810.98, 862,243.29 and 338,331.06

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Solution

The fourth proportional to 624,810.98, 862,243.29 and 338,331.06 is: 466,899.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,810.98 : 862,243.29 = 338,331.06 : x
  2. Step 2: Convert to fraction form
    624,810.98/862,243.29 = 338,331.06/x
  3. Step 3: Cross multiply
    624,810.98x = 862,243.29 × 338,331.06
  4. Step 4: Simplify right side
    624,810.98x = 291,723,680,280.72
  5. Step 5: Solve for x
    x = 291,723,680,280.72/624,810.98
  6. Step 6: Final answer
    x = 466,899.10

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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.