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Finding the Fourth Proportional to 911,316.60, 1,257,627.47 and 503,409.99

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Solution

The fourth proportional to 911,316.60, 1,257,627.47 and 503,409.99 is: 694,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,316.60 : 1,257,627.47 = 503,409.99 : x
  2. Step 2: Convert to fraction form
    911,316.60/1,257,627.47 = 503,409.99/x
  3. Step 3: Cross multiply
    911,316.60x = 1,257,627.47 × 503,409.99
  4. Step 4: Simplify right side
    911,316.60x = 633,102,234,295.48
  5. Step 5: Solve for x
    x = 633,102,234,295.48/911,316.60
  6. Step 6: Final answer
    x = 694,711.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.