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Finding the Fourth Proportional to 583,413.60, 873,176.40 and 423,033.60

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Solution

The fourth proportional to 583,413.60, 873,176.40 and 423,033.60 is: 633,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,413.60 : 873,176.40 = 423,033.60 : x
  2. Step 2: Convert to fraction form
    583,413.60/873,176.40 = 423,033.60/x
  3. Step 3: Cross multiply
    583,413.60x = 873,176.40 × 423,033.60
  4. Step 4: Simplify right side
    583,413.60x = 369,382,955,927.04
  5. Step 5: Solve for x
    x = 369,382,955,927.04/583,413.60
  6. Step 6: Final answer
    x = 633,140.80

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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.