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Finding the Fourth Proportional to 583,351.25, 805,025.27 and 315,079.25

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Solution

The fourth proportional to 583,351.25, 805,025.27 and 315,079.25 is: 434,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,351.25 : 805,025.27 = 315,079.25 : x
  2. Step 2: Convert to fraction form
    583,351.25/805,025.27 = 315,079.25/x
  3. Step 3: Cross multiply
    583,351.25x = 805,025.27 × 315,079.25
  4. Step 4: Simplify right side
    583,351.25x = 253,646,756,727.25
  5. Step 5: Solve for x
    x = 253,646,756,727.25/583,351.25
  6. Step 6: Final answer
    x = 434,809.66

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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.