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Finding the Fourth Proportional to 584,685.90, 806,866.55 and 316,413.90

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Solution

The fourth proportional to 584,685.90, 806,866.55 and 316,413.90 is: 436,651.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,685.90 : 806,866.55 = 316,413.90 : x
  2. Step 2: Convert to fraction form
    584,685.90/806,866.55 = 316,413.90/x
  3. Step 3: Cross multiply
    584,685.90x = 806,866.55 × 316,413.90
  4. Step 4: Simplify right side
    584,685.90x = 255,303,793,308.73
  5. Step 5: Solve for x
    x = 255,303,793,308.73/584,685.90
  6. Step 6: Final answer
    x = 436,651.19

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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.