Home / 583,619.72-805,457.22-342,105.28

Finding the Fourth Proportional to 583,619.72, 805,457.22 and 342,105.28

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Solution

The fourth proportional to 583,619.72, 805,457.22 and 342,105.28 is: 472,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,619.72 : 805,457.22 = 342,105.28 : x
  2. Step 2: Convert to fraction form
    583,619.72/805,457.22 = 342,105.28/x
  3. Step 3: Cross multiply
    583,619.72x = 805,457.22 × 342,105.28
  4. Step 4: Simplify right side
    583,619.72x = 275,551,167,776.12
  5. Step 5: Solve for x
    x = 275,551,167,776.12/583,619.72
  6. Step 6: Final answer
    x = 472,141.63

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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.