Home / 520,666.24-718,585.95-291,236.27

Finding the Fourth Proportional to 520,666.24, 718,585.95 and 291,236.27

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Solution

The fourth proportional to 520,666.24, 718,585.95 and 291,236.27 is: 401,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,666.24 : 718,585.95 = 291,236.27 : x
  2. Step 2: Convert to fraction form
    520,666.24/718,585.95 = 291,236.27/x
  3. Step 3: Cross multiply
    520,666.24x = 718,585.95 × 291,236.27
  4. Step 4: Simplify right side
    520,666.24x = 209,278,293,548.87
  5. Step 5: Solve for x
    x = 209,278,293,548.87/520,666.24
  6. Step 6: Final answer
    x = 401,943.28

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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.