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Finding the Fourth Proportional to 591,696.80, 887,026.80 and 355,133.60

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Solution

The fourth proportional to 591,696.80, 887,026.80 and 355,133.60 is: 532,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,696.80 : 887,026.80 = 355,133.60 : x
  2. Step 2: Convert to fraction form
    591,696.80/887,026.80 = 355,133.60/x
  3. Step 3: Cross multiply
    591,696.80x = 887,026.80 × 355,133.60
  4. Step 4: Simplify right side
    591,696.80x = 315,013,020,780.48
  5. Step 5: Solve for x
    x = 315,013,020,780.48/591,696.80
  6. Step 6: Final answer
    x = 532,389.26

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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.