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Finding the Fourth Proportional to 603,930.40, 907,645.20 and 593,432.80

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Solution

The fourth proportional to 603,930.40, 907,645.20 and 593,432.80 is: 891,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,930.40 : 907,645.20 = 593,432.80 : x
  2. Step 2: Convert to fraction form
    603,930.40/907,645.20 = 593,432.80/x
  3. Step 3: Cross multiply
    603,930.40x = 907,645.20 × 593,432.80
  4. Step 4: Simplify right side
    603,930.40x = 538,626,432,442.56
  5. Step 5: Solve for x
    x = 538,626,432,442.56/603,930.40
  6. Step 6: Final answer
    x = 891,868.39

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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.