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Finding the Fourth Proportional to 583,337, 805,005.60 and 315,065

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Solution

The fourth proportional to 583,337, 805,005.60 and 315,065 is: 434,789.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,337 : 805,005.60 = 315,065 : x
  2. Step 2: Convert to fraction form
    583,337/805,005.60 = 315,065/x
  3. Step 3: Cross multiply
    583,337x = 805,005.60 × 315,065
  4. Step 4: Simplify right side
    583,337x = 253,629,089,364
  5. Step 5: Solve for x
    x = 253,629,089,364/583,337
  6. Step 6: Final answer
    x = 434,789.99

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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.