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Finding the Fourth Proportional to 1,256,882.81, 1,734,483.70 and 683,913.11

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Solution

The fourth proportional to 1,256,882.81, 1,734,483.70 and 683,913.11 is: 943,792.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,882.81 : 1,734,483.70 = 683,913.11 : x
  2. Step 2: Convert to fraction form
    1,256,882.81/1,734,483.70 = 683,913.11/x
  3. Step 3: Cross multiply
    1,256,882.81x = 1,734,483.70 × 683,913.11
  4. Step 4: Simplify right side
    1,256,882.81x = 1,186,236,144,137.73
  5. Step 5: Solve for x
    x = 1,186,236,144,137.73/1,256,882.81
  6. Step 6: Final answer
    x = 943,792.16

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Why These Related Problems?

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