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Finding the Fourth Proportional to 624,625.60, 936,798.06 and 287,342.32

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Solution

The fourth proportional to 624,625.60, 936,798.06 and 287,342.32 is: 430,948.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,625.60 : 936,798.06 = 287,342.32 : x
  2. Step 2: Convert to fraction form
    624,625.60/936,798.06 = 287,342.32/x
  3. Step 3: Cross multiply
    624,625.60x = 936,798.06 × 287,342.32
  4. Step 4: Simplify right side
    624,625.60x = 269,181,727,931.90
  5. Step 5: Solve for x
    x = 269,181,727,931.90/624,625.60
  6. Step 6: Final answer
    x = 430,948.92

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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.