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Finding the Fourth Proportional to 583,422.48, 805,122.99 and 315,150.48

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Solution

The fourth proportional to 583,422.48, 805,122.99 and 315,150.48 is: 434,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,422.48 : 805,122.99 = 315,150.48 : x
  2. Step 2: Convert to fraction form
    583,422.48/805,122.99 = 315,150.48/x
  3. Step 3: Cross multiply
    583,422.48x = 805,122.99 × 315,150.48
  4. Step 4: Simplify right side
    583,422.48x = 253,734,896,757.54
  5. Step 5: Solve for x
    x = 253,734,896,757.54/583,422.48
  6. Step 6: Final answer
    x = 434,907.64

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1.5x scale

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.