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Finding the Fourth Proportional to 1,152,576.99, 1,724,583.70 and 724,106.76

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Solution

The fourth proportional to 1,152,576.99, 1,724,583.70 and 724,106.76 is: 1,083,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,576.99 : 1,724,583.70 = 724,106.76 : x
  2. Step 2: Convert to fraction form
    1,152,576.99/1,724,583.70 = 724,106.76/x
  3. Step 3: Cross multiply
    1,152,576.99x = 1,724,583.70 × 724,106.76
  4. Step 4: Simplify right side
    1,152,576.99x = 1,248,782,715,355.81
  5. Step 5: Solve for x
    x = 1,248,782,715,355.81/1,152,576.99
  6. Step 6: Final answer
    x = 1,083,470.11

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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.