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Finding the Fourth Proportional to 624,870.86, 937,339.09 and 198,440.69

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Solution

The fourth proportional to 624,870.86, 937,339.09 and 198,440.69 is: 297,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,870.86 : 937,339.09 = 198,440.69 : x
  2. Step 2: Convert to fraction form
    624,870.86/937,339.09 = 198,440.69/x
  3. Step 3: Cross multiply
    624,870.86x = 937,339.09 × 198,440.69
  4. Step 4: Simplify right side
    624,870.86x = 186,006,210,600.78
  5. Step 5: Solve for x
    x = 186,006,210,600.78/624,870.86
  6. Step 6: Final answer
    x = 297,671.45

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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.