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Finding the Fourth Proportional to 554,564.21, 765,112.50 and 452,413.08

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Solution

The fourth proportional to 554,564.21, 765,112.50 and 452,413.08 is: 624,178.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,564.21 : 765,112.50 = 452,413.08 : x
  2. Step 2: Convert to fraction form
    554,564.21/765,112.50 = 452,413.08/x
  3. Step 3: Cross multiply
    554,564.21x = 765,112.50 × 452,413.08
  4. Step 4: Simplify right side
    554,564.21x = 346,146,902,671.50
  5. Step 5: Solve for x
    x = 346,146,902,671.50/554,564.21
  6. Step 6: Final answer
    x = 624,178.23

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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.