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Finding the Fourth Proportional to 591,804.80, 886,978.20 and 402,264.80

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Solution

The fourth proportional to 591,804.80, 886,978.20 and 402,264.80 is: 602,901.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,804.80 : 886,978.20 = 402,264.80 : x
  2. Step 2: Convert to fraction form
    591,804.80/886,978.20 = 402,264.80/x
  3. Step 3: Cross multiply
    591,804.80x = 886,978.20 × 402,264.80
  4. Step 4: Simplify right side
    591,804.80x = 356,800,108,227.36
  5. Step 5: Solve for x
    x = 356,800,108,227.36/591,804.80
  6. Step 6: Final answer
    x = 602,901.68

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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.