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Finding the Fourth Proportional to 616,563.40, 923,532.90 and 511,587.40

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Solution

The fourth proportional to 616,563.40, 923,532.90 and 511,587.40 is: 766,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,563.40 : 923,532.90 = 511,587.40 : x
  2. Step 2: Convert to fraction form
    616,563.40/923,532.90 = 511,587.40/x
  3. Step 3: Cross multiply
    616,563.40x = 923,532.90 × 511,587.40
  4. Step 4: Simplify right side
    616,563.40x = 472,467,795,125.46
  5. Step 5: Solve for x
    x = 472,467,795,125.46/616,563.40
  6. Step 6: Final answer
    x = 766,292.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.