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Finding the Fourth Proportional to 573,138.90, 790,935.24 and 358,404.66

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Solution

The fourth proportional to 573,138.90, 790,935.24 and 358,404.66 is: 494,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,138.90 : 790,935.24 = 358,404.66 : x
  2. Step 2: Convert to fraction form
    573,138.90/790,935.24 = 358,404.66/x
  3. Step 3: Cross multiply
    573,138.90x = 790,935.24 × 358,404.66
  4. Step 4: Simplify right side
    573,138.90x = 283,474,875,774.22
  5. Step 5: Solve for x
    x = 283,474,875,774.22/573,138.90
  6. Step 6: Final answer
    x = 494,600.66

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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.