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Finding the Fourth Proportional to 648,323.31, 893,854.44 and 531,606.81

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Solution

The fourth proportional to 648,323.31, 893,854.44 and 531,606.81 is: 732,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,323.31 : 893,854.44 = 531,606.81 : x
  2. Step 2: Convert to fraction form
    648,323.31/893,854.44 = 531,606.81/x
  3. Step 3: Cross multiply
    648,323.31x = 893,854.44 × 531,606.81
  4. Step 4: Simplify right side
    648,323.31x = 475,179,107,452.74
  5. Step 5: Solve for x
    x = 475,179,107,452.74/648,323.31
  6. Step 6: Final answer
    x = 732,935.40

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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.