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Finding the Fourth Proportional to 591,893.24, 816,267.95 and 387,870.06

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Solution

The fourth proportional to 591,893.24, 816,267.95 and 387,870.06 is: 534,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,893.24 : 816,267.95 = 387,870.06 : x
  2. Step 2: Convert to fraction form
    591,893.24/816,267.95 = 387,870.06/x
  3. Step 3: Cross multiply
    591,893.24x = 816,267.95 × 387,870.06
  4. Step 4: Simplify right side
    591,893.24x = 316,605,898,843.90
  5. Step 5: Solve for x
    x = 316,605,898,843.90/591,893.24
  6. Step 6: Final answer
    x = 534,903.72

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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.