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Finding the Fourth Proportional to 710,737.24, 980,815.74 and 404,813.56

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Solution

The fourth proportional to 710,737.24, 980,815.74 and 404,813.56 is: 558,641.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,737.24 : 980,815.74 = 404,813.56 : x
  2. Step 2: Convert to fraction form
    710,737.24/980,815.74 = 404,813.56/x
  3. Step 3: Cross multiply
    710,737.24x = 980,815.74 × 404,813.56
  4. Step 4: Simplify right side
    710,737.24x = 397,047,511,413.43
  5. Step 5: Solve for x
    x = 397,047,511,413.43/710,737.24
  6. Step 6: Final answer
    x = 558,641.77

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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.