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Finding the Fourth Proportional to 624,200.20, 936,300.30 and 551,883.40

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Solution

The fourth proportional to 624,200.20, 936,300.30 and 551,883.40 is: 827,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,200.20 : 936,300.30 = 551,883.40 : x
  2. Step 2: Convert to fraction form
    624,200.20/936,300.30 = 551,883.40/x
  3. Step 3: Cross multiply
    624,200.20x = 936,300.30 × 551,883.40
  4. Step 4: Simplify right side
    624,200.20x = 516,728,592,985.02
  5. Step 5: Solve for x
    x = 516,728,592,985.02/624,200.20
  6. Step 6: Final answer
    x = 827,825.10

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1.5x scale

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.