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Finding the Fourth Proportional to 528,526.90, 729,361.59 and 295,954.30

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Solution

The fourth proportional to 528,526.90, 729,361.59 and 295,954.30 is: 408,413.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,526.90 : 729,361.59 = 295,954.30 : x
  2. Step 2: Convert to fraction form
    528,526.90/729,361.59 = 295,954.30/x
  3. Step 3: Cross multiply
    528,526.90x = 729,361.59 × 295,954.30
  4. Step 4: Simplify right side
    528,526.90x = 215,857,698,815.34
  5. Step 5: Solve for x
    x = 215,857,698,815.34/528,526.90
  6. Step 6: Final answer
    x = 408,413.84

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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.