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Finding the Fourth Proportional to 573,031.21, 790,787.76 and 358,295.76

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Solution

The fourth proportional to 573,031.21, 790,787.76 and 358,295.76 is: 494,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,031.21 : 790,787.76 = 358,295.76 : x
  2. Step 2: Convert to fraction form
    573,031.21/790,787.76 = 358,295.76/x
  3. Step 3: Cross multiply
    573,031.21x = 790,787.76 × 358,295.76
  4. Step 4: Simplify right side
    573,031.21x = 283,335,901,467.90
  5. Step 5: Solve for x
    x = 283,335,901,467.90/573,031.21
  6. Step 6: Final answer
    x = 494,451.08

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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.