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Finding the Fourth Proportional to 622,354.60, 934,223.10 and 385,964.20

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Solution

The fourth proportional to 622,354.60, 934,223.10 and 385,964.20 is: 579,374.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,354.60 : 934,223.10 = 385,964.20 : x
  2. Step 2: Convert to fraction form
    622,354.60/934,223.10 = 385,964.20/x
  3. Step 3: Cross multiply
    622,354.60x = 934,223.10 × 385,964.20
  4. Step 4: Simplify right side
    622,354.60x = 360,576,671,413.02
  5. Step 5: Solve for x
    x = 360,576,671,413.02/622,354.60
  6. Step 6: Final answer
    x = 579,374.96

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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.