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Finding the Fourth Proportional to 573,930.78, 791,810.55 and 358,989.18

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Solution

The fourth proportional to 573,930.78, 791,810.55 and 358,989.18 is: 495,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,930.78 : 791,810.55 = 358,989.18 : x
  2. Step 2: Convert to fraction form
    573,930.78/791,810.55 = 358,989.18/x
  3. Step 3: Cross multiply
    573,930.78x = 791,810.55 × 358,989.18
  4. Step 4: Simplify right side
    573,930.78x = 284,251,420,059.85
  5. Step 5: Solve for x
    x = 284,251,420,059.85/573,930.78
  6. Step 6: Final answer
    x = 495,271.26

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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.