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Finding the Fourth Proportional to 520,410.24, 718,156.80 and 294,050.88

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Solution

The fourth proportional to 520,410.24, 718,156.80 and 294,050.88 is: 405,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,410.24 : 718,156.80 = 294,050.88 : x
  2. Step 2: Convert to fraction form
    520,410.24/718,156.80 = 294,050.88/x
  3. Step 3: Cross multiply
    520,410.24x = 718,156.80 × 294,050.88
  4. Step 4: Simplify right side
    520,410.24x = 211,174,639,017.98
  5. Step 5: Solve for x
    x = 211,174,639,017.98/520,410.24
  6. Step 6: Final answer
    x = 405,784.94

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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.