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Finding the Fourth Proportional to 520,406.24, 718,151.25 and 294,046.88

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Solution

The fourth proportional to 520,406.24, 718,151.25 and 294,046.88 is: 405,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,406.24 : 718,151.25 = 294,046.88 : x
  2. Step 2: Convert to fraction form
    520,406.24/718,151.25 = 294,046.88/x
  3. Step 3: Cross multiply
    520,406.24x = 718,151.25 × 294,046.88
  4. Step 4: Simplify right side
    520,406.24x = 211,170,134,430.60
  5. Step 5: Solve for x
    x = 211,170,134,430.60/520,406.24
  6. Step 6: Final answer
    x = 405,779.41

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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.