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Finding the Fourth Proportional to 520,167.52, 717,889.56 and 293,827.60

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Solution

The fourth proportional to 520,167.52, 717,889.56 and 293,827.60 is: 405,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,167.52 : 717,889.56 = 293,827.60 : x
  2. Step 2: Convert to fraction form
    520,167.52/717,889.56 = 293,827.60/x
  3. Step 3: Cross multiply
    520,167.52x = 717,889.56 × 293,827.60
  4. Step 4: Simplify right side
    520,167.52x = 210,935,766,479.86
  5. Step 5: Solve for x
    x = 210,935,766,479.86/520,167.52
  6. Step 6: Final answer
    x = 405,515.07

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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.