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Finding the Fourth Proportional to 502,390.99, 693,307.43 and 272,952.82

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Solution

The fourth proportional to 502,390.99, 693,307.43 and 272,952.82 is: 376,679.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,390.99 : 693,307.43 = 272,952.82 : x
  2. Step 2: Convert to fraction form
    502,390.99/693,307.43 = 272,952.82/x
  3. Step 3: Cross multiply
    502,390.99x = 693,307.43 × 272,952.82
  4. Step 4: Simplify right side
    502,390.99x = 189,240,217,094.57
  5. Step 5: Solve for x
    x = 189,240,217,094.57/502,390.99
  6. Step 6: Final answer
    x = 376,679.16

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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.