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Finding the Fourth Proportional to 592,771.50, 817,801.41 and 388,934.90

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Solution

The fourth proportional to 592,771.50, 817,801.41 and 388,934.90 is: 536,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,771.50 : 817,801.41 = 388,934.90 : x
  2. Step 2: Convert to fraction form
    592,771.50/817,801.41 = 388,934.90/x
  3. Step 3: Cross multiply
    592,771.50x = 817,801.41 × 388,934.90
  4. Step 4: Simplify right side
    592,771.50x = 318,071,510,054.46
  5. Step 5: Solve for x
    x = 318,071,510,054.46/592,771.50
  6. Step 6: Final answer
    x = 536,583.68

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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.