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Finding the Fourth Proportional to 583,907.15, 805,654.32 and 354,458.86

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Solution

The fourth proportional to 583,907.15, 805,654.32 and 354,458.86 is: 489,069.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,907.15 : 805,654.32 = 354,458.86 : x
  2. Step 2: Convert to fraction form
    583,907.15/805,654.32 = 354,458.86/x
  3. Step 3: Cross multiply
    583,907.15x = 805,654.32 × 354,458.86
  4. Step 4: Simplify right side
    583,907.15x = 285,571,308,477.92
  5. Step 5: Solve for x
    x = 285,571,308,477.92/583,907.15
  6. Step 6: Final answer
    x = 489,069.72

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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.