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Finding the Fourth Proportional to 832,368.40, 1,246,709.40 and 684,912.40

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Solution

The fourth proportional to 832,368.40, 1,246,709.40 and 684,912.40 is: 1,025,851.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,368.40 : 1,246,709.40 = 684,912.40 : x
  2. Step 2: Convert to fraction form
    832,368.40/1,246,709.40 = 684,912.40/x
  3. Step 3: Cross multiply
    832,368.40x = 1,246,709.40 × 684,912.40
  4. Step 4: Simplify right side
    832,368.40x = 853,886,727,256.56
  5. Step 5: Solve for x
    x = 853,886,727,256.56/832,368.40
  6. Step 6: Final answer
    x = 1,025,851.93

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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.