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Finding the Fourth Proportional to 519,099.30, 778,867.65 and 282,611.70

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Solution

The fourth proportional to 519,099.30, 778,867.65 and 282,611.70 is: 424,036.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,099.30 : 778,867.65 = 282,611.70 : x
  2. Step 2: Convert to fraction form
    519,099.30/778,867.65 = 282,611.70/x
  3. Step 3: Cross multiply
    519,099.30x = 778,867.65 × 282,611.70
  4. Step 4: Simplify right side
    519,099.30x = 220,117,110,641.51
  5. Step 5: Solve for x
    x = 220,117,110,641.51/519,099.30
  6. Step 6: Final answer
    x = 424,036.62

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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.