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Finding the Fourth Proportional to 883,900.80, 1,326,542.40 and 410,644.80

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Solution

The fourth proportional to 883,900.80, 1,326,542.40 and 410,644.80 is: 616,288.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,900.80 : 1,326,542.40 = 410,644.80 : x
  2. Step 2: Convert to fraction form
    883,900.80/1,326,542.40 = 410,644.80/x
  3. Step 3: Cross multiply
    883,900.80x = 1,326,542.40 × 410,644.80
  4. Step 4: Simplify right side
    883,900.80x = 544,737,738,539.52
  5. Step 5: Solve for x
    x = 544,737,738,539.52/883,900.80
  6. Step 6: Final answer
    x = 616,288.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.