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Finding the Fourth Proportional to 576,416.76, 864,656.66 and 239,491.47

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Solution

The fourth proportional to 576,416.76, 864,656.66 and 239,491.47 is: 359,250.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,416.76 : 864,656.66 = 239,491.47 : x
  2. Step 2: Convert to fraction form
    576,416.76/864,656.66 = 239,491.47/x
  3. Step 3: Cross multiply
    576,416.76x = 864,656.66 × 239,491.47
  4. Step 4: Simplify right side
    576,416.76x = 207,077,889,027.95
  5. Step 5: Solve for x
    x = 207,077,889,027.95/576,416.76
  6. Step 6: Final answer
    x = 359,250.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.