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Finding the Fourth Proportional to 899,545, 1,241,355.46 and 497,128.36

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Solution

The fourth proportional to 899,545, 1,241,355.46 and 497,128.36 is: 686,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,545 : 1,241,355.46 = 497,128.36 : x
  2. Step 2: Convert to fraction form
    899,545/1,241,355.46 = 497,128.36/x
  3. Step 3: Cross multiply
    899,545x = 1,241,355.46 × 497,128.36
  4. Step 4: Simplify right side
    899,545x = 617,113,004,006.85
  5. Step 5: Solve for x
    x = 617,113,004,006.85/899,545
  6. Step 6: Final answer
    x = 686,027.94

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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.