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Finding the Fourth Proportional to 573,030.21, 790,786.38 and 358,294.76

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Solution

The fourth proportional to 573,030.21, 790,786.38 and 358,294.76 is: 494,449.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,030.21 : 790,786.38 = 358,294.76 : x
  2. Step 2: Convert to fraction form
    573,030.21/790,786.38 = 358,294.76/x
  3. Step 3: Cross multiply
    573,030.21x = 790,786.38 × 358,294.76
  4. Step 4: Simplify right side
    573,030.21x = 283,334,610,487.96
  5. Step 5: Solve for x
    x = 283,334,610,487.96/573,030.21
  6. Step 6: Final answer
    x = 494,449.69

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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.