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Finding the Fourth Proportional to 368,497.12, 508,484.82 and 207,348.88

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Solution

The fourth proportional to 368,497.12, 508,484.82 and 207,348.88 is: 286,118.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,497.12 : 508,484.82 = 207,348.88 : x
  2. Step 2: Convert to fraction form
    368,497.12/508,484.82 = 207,348.88/x
  3. Step 3: Cross multiply
    368,497.12x = 508,484.82 × 207,348.88
  4. Step 4: Simplify right side
    368,497.12x = 105,433,757,924.00
  5. Step 5: Solve for x
    x = 105,433,757,924.00/368,497.12
  6. Step 6: Final answer
    x = 286,118.27

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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.