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Finding the Fourth Proportional to 520,518.04, 718,235.46 and 294,080.92

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Solution

The fourth proportional to 520,518.04, 718,235.46 and 294,080.92 is: 405,786.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,518.04 : 718,235.46 = 294,080.92 : x
  2. Step 2: Convert to fraction form
    520,518.04/718,235.46 = 294,080.92/x
  3. Step 3: Cross multiply
    520,518.04x = 718,235.46 × 294,080.92
  4. Step 4: Simplify right side
    520,518.04x = 211,219,344,853.42
  5. Step 5: Solve for x
    x = 211,219,344,853.42/520,518.04
  6. Step 6: Final answer
    x = 405,786.79

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Double scale
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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.