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Finding the Fourth Proportional to 903,966.72, 1,356,390.72 and 371,647.68

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Solution

The fourth proportional to 903,966.72, 1,356,390.72 and 371,647.68 is: 557,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,966.72 : 1,356,390.72 = 371,647.68 : x
  2. Step 2: Convert to fraction form
    903,966.72/1,356,390.72 = 371,647.68/x
  3. Step 3: Cross multiply
    903,966.72x = 1,356,390.72 × 371,647.68
  4. Step 4: Simplify right side
    903,966.72x = 504,099,464,261.53
  5. Step 5: Solve for x
    x = 504,099,464,261.53/903,966.72
  6. Step 6: Final answer
    x = 557,652.68

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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.