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Finding the Fourth Proportional to 522,744.80, 782,950.80 and 403,480.40

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Solution

The fourth proportional to 522,744.80, 782,950.80 and 403,480.40 is: 604,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,744.80 : 782,950.80 = 403,480.40 : x
  2. Step 2: Convert to fraction form
    522,744.80/782,950.80 = 403,480.40/x
  3. Step 3: Cross multiply
    522,744.80x = 782,950.80 × 403,480.40
  4. Step 4: Simplify right side
    522,744.80x = 315,905,301,964.32
  5. Step 5: Solve for x
    x = 315,905,301,964.32/522,744.80
  6. Step 6: Final answer
    x = 604,320.31

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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.