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Finding the Fourth Proportional to 623,807.10, 936,040.31 and 442,608.92

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Solution

The fourth proportional to 623,807.10, 936,040.31 and 442,608.92 is: 664,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,807.10 : 936,040.31 = 442,608.92 : x
  2. Step 2: Convert to fraction form
    623,807.10/936,040.31 = 442,608.92/x
  3. Step 3: Cross multiply
    623,807.10x = 936,040.31 × 442,608.92
  4. Step 4: Simplify right side
    623,807.10x = 414,299,787,574.48
  5. Step 5: Solve for x
    x = 414,299,787,574.48/623,807.10
  6. Step 6: Final answer
    x = 664,147.28

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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.