Home / 520,239.77-717,989.17-293,899.85

Finding the Fourth Proportional to 520,239.77, 717,989.17 and 293,899.85

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Solution

The fourth proportional to 520,239.77, 717,989.17 and 293,899.85 is: 405,614.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,239.77 : 717,989.17 = 293,899.85 : x
  2. Step 2: Convert to fraction form
    520,239.77/717,989.17 = 293,899.85/x
  3. Step 3: Cross multiply
    520,239.77x = 717,989.17 × 293,899.85
  4. Step 4: Simplify right side
    520,239.77x = 211,016,909,364.62
  5. Step 5: Solve for x
    x = 211,016,909,364.62/520,239.77
  6. Step 6: Final answer
    x = 405,614.72

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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.