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Finding the Fourth Proportional to 420,157.44, 579,916.80 and 241,413.12

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Solution

The fourth proportional to 420,157.44, 579,916.80 and 241,413.12 is: 333,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,157.44 : 579,916.80 = 241,413.12 : x
  2. Step 2: Convert to fraction form
    420,157.44/579,916.80 = 241,413.12/x
  3. Step 3: Cross multiply
    420,157.44x = 579,916.80 × 241,413.12
  4. Step 4: Simplify right side
    420,157.44x = 139,999,524,028.42
  5. Step 5: Solve for x
    x = 139,999,524,028.42/420,157.44
  6. Step 6: Final answer
    x = 333,207.29

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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.