Home / 520,738.56-718,585.32-291,256.08

Finding the Fourth Proportional to 520,738.56, 718,585.32 and 291,256.08

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Solution

The fourth proportional to 520,738.56, 718,585.32 and 291,256.08 is: 401,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,738.56 : 718,585.32 = 291,256.08 : x
  2. Step 2: Convert to fraction form
    520,738.56/718,585.32 = 291,256.08/x
  3. Step 3: Cross multiply
    520,738.56x = 718,585.32 × 291,256.08
  4. Step 4: Simplify right side
    520,738.56x = 209,292,343,867.28
  5. Step 5: Solve for x
    x = 209,292,343,867.28/520,738.56
  6. Step 6: Final answer
    x = 401,914.44

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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.